Aquavitro Salinity salt
- Thread starter bgraves
- Start date
I emailed them yesterday to make sure all this info is accurate. Here's what I got:
Thanks for the email in regard to this. The numbers that
are being posted are old and inaccurate data. These
numbers were removed from our site before the product was
released and unfortunately they are still being posted on
forums with the assumption that they are current. All
parameters in salinity are targeted toward NSW levels,
including heavy metals. In order to clear up the confusion
with regard to this, we will be posting up-to-date numbers
on our site within the next couple days. From what I
understand, the heavy metal numbers in our final product
are within range of natural sea water. Please let us know
if we can answer any other questions or concerns with
regard to this or any other matter. Thank you for your
support.
Tech Support 10201
They don't give me numbers but hopefully the numbers will be up on their website soon. If they don't, I still like the salt and have been having much more success with it than the previous 2 salts I used.
Thanks for the email in regard to this. The numbers that
are being posted are old and inaccurate data. These
numbers were removed from our site before the product was
released and unfortunately they are still being posted on
forums with the assumption that they are current. All
parameters in salinity are targeted toward NSW levels,
including heavy metals. In order to clear up the confusion
with regard to this, we will be posting up-to-date numbers
on our site within the next couple days. From what I
understand, the heavy metal numbers in our final product
are within range of natural sea water. Please let us know
if we can answer any other questions or concerns with
regard to this or any other matter. Thank you for your
support.
Tech Support 10201
They don't give me numbers but hopefully the numbers will be up on their website soon. If they don't, I still like the salt and have been having much more success with it than the previous 2 salts I used.
Billybeau1
Premium Member
I pretty much figured the copper analysis figure was incorrect. I think they missed a decimal point. :lol:
Seachem really needs to have some good people look at this stuff a little more closely. This isn't like the old days before internet forums.
Personally, I didn't see anything wrong with their Reef Salt.
Now they have to back pedal and do damage control. Not a good way to market a new salt. [chimp]
Seachem really needs to have some good people look at this stuff a little more closely. This isn't like the old days before internet forums.
Personally, I didn't see anything wrong with their Reef Salt.
Now they have to back pedal and do damage control. Not a good way to market a new salt. [chimp]
Well, I won two buckets of the salt in the raffle at IMAC West, back in late July/early August 2009. Rather, I won two IOUs, with the understanding that I'd get the salt when it was released to the market. The rest of August, September, October, November, and December passed with no salt. It finally arrived near the end of January 2010.
Putting empty buckets up as a prize at the end of July, then sending the actual salt in January, could definitely necessitate a little damage control. Aside from those of us who won, everyone who attended the show or saw the salt listed as a raffle prize on the Web site had reason to believe that the salt would hit the shelves sooner than six months later.
Putting empty buckets up as a prize at the end of July, then sending the actual salt in January, could definitely necessitate a little damage control. Aside from those of us who won, everyone who attended the show or saw the salt listed as a raffle prize on the Web site had reason to believe that the salt would hit the shelves sooner than six months later.
To all:
We apologize for the confusion on the cited density of seawater at S=35. We should have cited the temperature for that density as being 15.56 C (60 F). Per Spotte "Captive Seawater Fishes", 1992, pp 28-29, the SG value at S=35 & T=16 C is approx. 1.0265 (or 1.026598 using the formula on the Salinity™ bucket -(a formula that is based upon this data in Spotte). We are well aware that SG is not the same thing as density. To arrive at the density value we cite we simply take
1.02598 * 0.9990389 g/cm^3 (density of pure water at 15.56 C)= 1.0256113 g/cm^3 which rounds to 1.026 g/cm^3 or 1.026 kg/L
That is since SG is a unitless value based on a ratio of densities we can obtain the actual density at that temperature by multiplying by the density of the reference solution (density of pure water at 15.56 C). SG=x/y where x=density of saltwater and y = density of pure water at the ref. temp (15.56 C). So to get x back we multiply SG*y as y is a known value.
But we should have cited the temperature for our density value as I imagine this would have avoided the confusion over this matter.
With respect to our formula for estimating S to within 1% requiring the use of an H value from a hydrometer calibrated at 15.56 C (60 F) and the note that most hobbyist grade hydrometers are calibrated at 75 F or 77 F the difference in the calculated values are in the neighborhood of 0.2% if one were using a hydrometer at 77F so this should not be an issue in any practical sense. We are simply citing the hydrometer calibration so that those who wish to be as accurate as possible can be, however the use of a hobbyist grade hydrometer will have no material effect (<0.2%) on the outcome. The use of values at 15.56 C is because those are the values used in Spotte. Anyalytical (not hobbyist grade) grade equipment is calibrated at 15.56 C so we felt that was the most relevant data to use if one is wishing to be as accurate as possible.
And lastly, with respect to the GA that was posted on our website previously. Those values were from the early days of our formulation of the product and as you can see now from the current shipping product many values were adjusted in light of additional information and studies. The website should have reflected those changes well before our release, however sometimes the research department is not as swift in transmitting updated information to our sales and marketing departments as we would always like. However the upside to this is they are more focused on the research and the product than in in the minutiae of marketing details. But again we apologize for the confusion on this and the website should now or will shortly reflect the values shown on our shipping product.
Gregory Morin
CEO
Seachem Laboratories
We apologize for the confusion on the cited density of seawater at S=35. We should have cited the temperature for that density as being 15.56 C (60 F). Per Spotte "Captive Seawater Fishes", 1992, pp 28-29, the SG value at S=35 & T=16 C is approx. 1.0265 (or 1.026598 using the formula on the Salinity™ bucket -(a formula that is based upon this data in Spotte). We are well aware that SG is not the same thing as density. To arrive at the density value we cite we simply take
1.02598 * 0.9990389 g/cm^3 (density of pure water at 15.56 C)= 1.0256113 g/cm^3 which rounds to 1.026 g/cm^3 or 1.026 kg/L
That is since SG is a unitless value based on a ratio of densities we can obtain the actual density at that temperature by multiplying by the density of the reference solution (density of pure water at 15.56 C). SG=x/y where x=density of saltwater and y = density of pure water at the ref. temp (15.56 C). So to get x back we multiply SG*y as y is a known value.
But we should have cited the temperature for our density value as I imagine this would have avoided the confusion over this matter.
With respect to our formula for estimating S to within 1% requiring the use of an H value from a hydrometer calibrated at 15.56 C (60 F) and the note that most hobbyist grade hydrometers are calibrated at 75 F or 77 F the difference in the calculated values are in the neighborhood of 0.2% if one were using a hydrometer at 77F so this should not be an issue in any practical sense. We are simply citing the hydrometer calibration so that those who wish to be as accurate as possible can be, however the use of a hobbyist grade hydrometer will have no material effect (<0.2%) on the outcome. The use of values at 15.56 C is because those are the values used in Spotte. Anyalytical (not hobbyist grade) grade equipment is calibrated at 15.56 C so we felt that was the most relevant data to use if one is wishing to be as accurate as possible.
And lastly, with respect to the GA that was posted on our website previously. Those values were from the early days of our formulation of the product and as you can see now from the current shipping product many values were adjusted in light of additional information and studies. The website should have reflected those changes well before our release, however sometimes the research department is not as swift in transmitting updated information to our sales and marketing departments as we would always like. However the upside to this is they are more focused on the research and the product than in in the minutiae of marketing details. But again we apologize for the confusion on this and the website should now or will shortly reflect the values shown on our shipping product.
Gregory Morin
CEO
Seachem Laboratories
Greg
Nice of you to show up but there is still some confusion on your part
Anyalytical (not hobbyist grade) grade equipment is calibrated at 15.56 C so we felt that was the most relevant data to use if one is wishing to be as accurate as possible.
I will argue that, as chemical oceanographers do not use a 60F hydrometer but a 15 C, when they use them but we can say that is splitting hairs.
But we should have cited the temperature for our density value as I imagine this would have avoided the confusion over this matter.
Yes, that is true but no chemical oceanographer corrects for temp with D. @ 25 C it is 1.0233 g / cm^3.......period. There should have been no mention of D at all just Sg, as it is used in this hobby, as it just gets all confused.
Granted D = 1.026 g/cm^3, for most in a flat sense and one using a hydrometer a 25 hydrometer @ 25 C is about the same. But in this hobby we do not use D or hydrometer cal @ 15 C or 60F, although many in this hobby think D = Sg . And they will not be cooling there water to 60 F and they do not have "real" Density meters, par one guy I know of, at the tune of ~ $2,000 :lol:
Anyalytical (not hobbyist grade) grade equipment is calibrated at 15.56 C so we felt that was the most relevant data to use if one is wishing to be as accurate as possible.
Yes, but none of us do and such instructions again just confuse many
As far as equations go for Sg, D, Salinity conductivity we have calculators for that. And yes I have all of Spotte's books, so I know where you are coming from and he also has Sg correction tables.
15.56 C (60 F) and the note that most hobbyist grade hydrometers are calibrated at 75 F or 77 F the difference in the calculated values are in the neighborhood of 0.2% if one were using a hydrometer at 77F so this should not be an issue in any practical sense.
How do you get that 0.2 % ?.
This is what they will be doing and how most will see things
A 60 F hydrometer in 77F water @ 35 ppt = 1.02434
A 77 F hydrometer in 77 F water @35 ppt = 1.0264
A person think'in 1.02434 will be think'in I'm at 32.3 ppt and not 35 ppt, as 1.02434 = 32.3 ppt @ 25 C. So, that is to low by 8 % because it is suppose to be at 1.0264 is what most will be think'in.
Why ? Because we have beat into their heads that 35 ppt =- 1.0264 @ 25 C, because our hydrometers and refract are set to that. Instructions on packages should be as "we" use them not some lab or a very advanced test book like Spotte's, which is really not directed to us or a set of instructions for a 60 F and a 77 F
Anyway Greg thanks for coming here to clarify things One PLUS for SeaChem is they are often more willing to come to forums for debates, something most will not do and especially on salt mixes. They just hide on their sponsor forum if they have one.
Looking forward to seeing the new GA
Nice of you to show up but there is still some confusion on your part
Anyalytical (not hobbyist grade) grade equipment is calibrated at 15.56 C so we felt that was the most relevant data to use if one is wishing to be as accurate as possible.
I will argue that, as chemical oceanographers do not use a 60F hydrometer but a 15 C, when they use them but we can say that is splitting hairs.
But we should have cited the temperature for our density value as I imagine this would have avoided the confusion over this matter.
Yes, that is true but no chemical oceanographer corrects for temp with D. @ 25 C it is 1.0233 g / cm^3.......period. There should have been no mention of D at all just Sg, as it is used in this hobby, as it just gets all confused.
Granted D = 1.026 g/cm^3, for most in a flat sense and one using a hydrometer a 25 hydrometer @ 25 C is about the same. But in this hobby we do not use D or hydrometer cal @ 15 C or 60F, although many in this hobby think D = Sg . And they will not be cooling there water to 60 F and they do not have "real" Density meters, par one guy I know of, at the tune of ~ $2,000 :lol:
Anyalytical (not hobbyist grade) grade equipment is calibrated at 15.56 C so we felt that was the most relevant data to use if one is wishing to be as accurate as possible.
Yes, but none of us do and such instructions again just confuse many
As far as equations go for Sg, D, Salinity conductivity we have calculators for that. And yes I have all of Spotte's books, so I know where you are coming from and he also has Sg correction tables.
15.56 C (60 F) and the note that most hobbyist grade hydrometers are calibrated at 75 F or 77 F the difference in the calculated values are in the neighborhood of 0.2% if one were using a hydrometer at 77F so this should not be an issue in any practical sense.
How do you get that 0.2 % ?.
This is what they will be doing and how most will see things
A 60 F hydrometer in 77F water @ 35 ppt = 1.02434
A 77 F hydrometer in 77 F water @35 ppt = 1.0264
A person think'in 1.02434 will be think'in I'm at 32.3 ppt and not 35 ppt, as 1.02434 = 32.3 ppt @ 25 C. So, that is to low by 8 % because it is suppose to be at 1.0264 is what most will be think'in.
Why ? Because we have beat into their heads that 35 ppt =- 1.0264 @ 25 C, because our hydrometers and refract are set to that. Instructions on packages should be as "we" use them not some lab or a very advanced test book like Spotte's, which is really not directed to us or a set of instructions for a 60 F and a 77 F
Anyway Greg thanks for coming here to clarify things
One PLUS for SeaChem is they are often more willing to come to forums for debates, something most will not do and especially on salt mixes. They just hide on their sponsor forum if they have one.Looking forward to seeing the new GA
Well, maybe someone should set up a Poll thread on the use of hydrometers calibrated at 15.56 vs 25 C... I think you might be surprised by how many do choose to use higher grade equipment. ;-)
But I can see your point. At Seachem (and by extension Aquavitro) we've always tried to foster the use of terminology as it "should be" not as "it is". We try to always set the bar higher and "that's just the way it's always been done" is not a valid reason to do something in my book. We should always question why and make improvements. Sometimes there are valid reasons, but more often than not it's arbitrary and people get stuck in a rut. For example the term "meq/L" is the most scientifically sound and simple and unambiguous unit term for alkalinity...that's how it should be. But many still persist in using the "old school" terms like dKH and ppm or grains or what have you. But we recognize that not 100% will all understand or want to use it... so grudgingly we typically temper that usage with a conversion ratio or alternate term. So, in this context I can see the value in also including a simple chart and alternate equation to yield values appropriate for a 25 C hydrometer.
The following info will be posted to the Salinity web site shortly and will appear on our next run of Salinity buckets:
Equation for calculating S from a hydrometer reading calibrated at 25 C is
S=0.2211T + 1325H - 1330.4524 (T factor simply changes from 0.3348 to 0.2211)
For the "chart" we show on the label one would simply add 0.002 to the values to be used with a 25 C hydrometer.
Hope that helps
-Greg Morin
CEO
Seachem Laboratories
But I can see your point. At Seachem (and by extension Aquavitro) we've always tried to foster the use of terminology as it "should be" not as "it is". We try to always set the bar higher and "that's just the way it's always been done" is not a valid reason to do something in my book. We should always question why and make improvements. Sometimes there are valid reasons, but more often than not it's arbitrary and people get stuck in a rut. For example the term "meq/L" is the most scientifically sound and simple and unambiguous unit term for alkalinity...that's how it should be. But many still persist in using the "old school" terms like dKH and ppm or grains or what have you. But we recognize that not 100% will all understand or want to use it... so grudgingly we typically temper that usage with a conversion ratio or alternate term. So, in this context I can see the value in also including a simple chart and alternate equation to yield values appropriate for a 25 C hydrometer.
The following info will be posted to the Salinity web site shortly and will appear on our next run of Salinity buckets:
Equation for calculating S from a hydrometer reading calibrated at 25 C is
S=0.2211T + 1325H - 1330.4524 (T factor simply changes from 0.3348 to 0.2211)
For the "chart" we show on the label one would simply add 0.002 to the values to be used with a 25 C hydrometer.
Hope that helps
-Greg Morin
CEO
Seachem Laboratories
Today I noticed their website
Copper (ppm) guaranteed range: 0.00029 - 0.00031 (vs. NSW 0.0003)
So they are claiming NSW +/- 3% for copper too as expected. I still am chuckling that they had that crazy copper number up before given the whole spiel for the new salt was "we are super close to NSW". It's like a hotel commercial saying "as comfortable as home" and then panning across a room featuring a bed of nails.
Anyway, what I'd like to see is a third-party validation of these claims. It's all fine and dandy they guarantee this and that, but without independent third-party validation, I'm pretty skeptical, especially concerning these trace elements (including HMs). Having said that, I bought a bucket today anyway. I'll be doing the big three tests on it (Mg, Alk, Ca) at 35ppt but have no way to accurate do the HM testing.
Copper (ppm) guaranteed range: 0.00029 - 0.00031 (vs. NSW 0.0003)
So they are claiming NSW +/- 3% for copper too as expected. I still am chuckling that they had that crazy copper number up before given the whole spiel for the new salt was "we are super close to NSW". It's like a hotel commercial saying "as comfortable as home" and then panning across a room featuring a bed of nails.
Anyway, what I'd like to see is a third-party validation of these claims. It's all fine and dandy they guarantee this and that, but without independent third-party validation, I'm pretty skeptical, especially concerning these trace elements (including HMs). Having said that, I bought a bucket today anyway. I'll be doing the big three tests on it (Mg, Alk, Ca) at 35ppt but have no way to accurate do the HM testing.
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Greg
Well, maybe someone should set up a Poll thread on the use of hydrometers calibrated at 15.56 vs 25 C... I think you might be surprised by how many do choose to use higher grade equipment. ;-)
Good try but that will not work I have been is this hobby for +40 years, knew your dad well, and helped him out on some of his products. I can count on both hands, the total people in this hobby I have heard of, have been on broads for like 20 years, that use a 15C or 60F and I have a finger missing. They are very, very rare in this hobby. And most now are using Refractometers by far or swing-arm hydrometers, set to 77F( the IO self-temp compensating) or a Tropic Marin 12 " floating Hydrometer set to 75 F
Yes, I am well aware of the old school thing. I never get a question on a Alk reading of say 125 ppm and what does that mean but it is often" Boomer can you explain what meq / l really means An then they say "I should never of asked but thanks "
If you want to hit me with D that is fine but you should now the Salinity std, in NSW, is no D or Sg but Conductivity, dictated by the Salinity Equation of state. D is hardly ever used anymore.
use of terminology as it "should be" not as "it is"
That is not going to work. Randy, Craig Bingman, Tom Frakes , I and others have tried for years and you will NEVER get there and just confuse most of them The object is to be simple and short. They do not want or should not have to run math equations for Salinity.
Equation for calculating S from a hydrometer reading calibrated at 25 C is
As I said earlier we do not really need that we have Salinity Calculators for that but then again not everybody visits websites/forums and some not at all. Why not just put a table in the Bucket for 25 C and 60 F from 30 - 40 ppt. I have a Excel program that generates such tables.
Here is an example of a 75 F
Salinity60......74......75......76........77......78.......79......80.......81......82.......83.......84.......85.......86
30 1.0247 1.0228 1.0226 1.0225 1.0223 1.0221 1.0220 1.0218 1.0216 1.0214 1.0213 1.0211 1.0209 1.0207
31 1.0255 1.0235 1.0234 1.0232 1.0231 1.0229 1.0227 1.0225 1.0224 1.0222 1.0220 1.0218 1.0217 1.0215
32 1.0263 1.0243 1.0241 1.0240 1.0238 1.0236 1.0235 1.0233 1.0231 1.0229 1.0228 1.0226 1.0224 1.0222
33 1.0271 1.0251 1.0249 1.0247 1.0246 1.0244 1.0242 1.0241 1.0239 1.0237 1.0235 1.0233 1.0232 1.0230
34 1.0278 1.0258 1.0257 1.0255 1.0253 1.0252 1.0250 1.0248 1.0246 1.0245 1.0243 1.0241 1.0239 1.0237
35 1.0286 1.0266 1.0264 1.0263 1.0261 1.0259 1.0257 1.0256 1.0254 1.0252 1.0250 1.0248 1.0247 1.0245
36 1.0294 1.0273 1.0272 1.0270 1.0268 1.0267 1.0265 1.0263 1.0261 1.0260 1.0258 1.0256 1.0254 1.0252
37 1.0301 1.0281 1.0279 1.0278 1.0276 1.0274 1.0273 1.0271 1.0269 1.0267 1.0265 1.0264 1.0262 1.0260
38 1.0309 1.0289 1.0287 1.0285 1.0284 1.0282 1.0280 1.0278 1.0277 1.0275 1.0273 1.0271 1.0269 1.0267
39 1.0317 1.0296 1.0295 1.0293 1.0291 1.0289 1.0288 1.0286 1.0284 1.0282 1.0280 1.0279 1.0277 1.0275
40 1.0325 1.0304 1.0302 1.0301 1.0299 1.0297 1.0295 1.0294 1.0292 1.0290 1.0288 1.0286 1.0284 1.0282
Salinity Calculators
Salinity, D and Conductivity
http://fermi.jhuapl.edu/denscalc.html
Salinity for Conductivity without D
http://gaea.es.flinders.edu.au/~mattom/Utilities/salcon.html
Salinity with D only
http://www.phys.ocean.dal.ca/~kelley/seawater/density.html
Hydrometer cal and Correction Temp Calcualtors and to include CO2 in seawater, plus others like WC
http://www.hamzasreef.com/Contents/Calculators/index.htm
Salinity and Sg cal. and temp correction
http://reefkeeping.com/issues/2004-07/rhf/conversion.htm
A full SG table for a 77F Hydro
http://reefkeeping.com/issues/2004-07/rhf/table1.pdf
And lots of Randy articles on Salinity, like 5 of them
Many people use these
On another subject, how is this future product for controlling Bryo going ?
So, have a nice day and glad you showed up
Well, maybe someone should set up a Poll thread on the use of hydrometers calibrated at 15.56 vs 25 C... I think you might be surprised by how many do choose to use higher grade equipment. ;-)
Good try but that will not work
I have been is this hobby for +40 years, knew your dad well, and helped him out on some of his products. I can count on both hands, the total people in this hobby I have heard of, have been on broads for like 20 years, that use a 15C or 60F and I have a finger missing. They are very, very rare in this hobby. And most now are using Refractometers by far or swing-arm hydrometers, set to 77F( the IO self-temp compensating) or a Tropic Marin 12 " floating Hydrometer set to 75 FYes, I am well aware of the old school thing. I never get a question on a Alk reading of say 125 ppm and what does that mean but it is often" Boomer can you explain what meq / l really means
An then they say "I should never of asked but thanks " If you want to hit me with D that is fine but you should now the Salinity std, in NSW, is no D or Sg but Conductivity, dictated by the Salinity Equation of state. D is hardly ever used anymore.
use of terminology as it "should be" not as "it is"
That is not going to work. Randy, Craig Bingman, Tom Frakes , I and others have tried for years and you will NEVER get there and just confuse most of them
The object is to be simple and short. They do not want or should not have to run math equations for Salinity.Equation for calculating S from a hydrometer reading calibrated at 25 C is
As I said earlier we do not really need that we have Salinity Calculators for that but then again not everybody visits websites/forums and some not at all. Why not just put a table in the Bucket for 25 C and 60 F from 30 - 40 ppt. I have a Excel program that generates such tables.
Here is an example of a 75 F
Salinity60......74......75......76........77......78.......79......80.......81......82.......83.......84.......85.......86
30 1.0247 1.0228 1.0226 1.0225 1.0223 1.0221 1.0220 1.0218 1.0216 1.0214 1.0213 1.0211 1.0209 1.0207
31 1.0255 1.0235 1.0234 1.0232 1.0231 1.0229 1.0227 1.0225 1.0224 1.0222 1.0220 1.0218 1.0217 1.0215
32 1.0263 1.0243 1.0241 1.0240 1.0238 1.0236 1.0235 1.0233 1.0231 1.0229 1.0228 1.0226 1.0224 1.0222
33 1.0271 1.0251 1.0249 1.0247 1.0246 1.0244 1.0242 1.0241 1.0239 1.0237 1.0235 1.0233 1.0232 1.0230
34 1.0278 1.0258 1.0257 1.0255 1.0253 1.0252 1.0250 1.0248 1.0246 1.0245 1.0243 1.0241 1.0239 1.0237
35 1.0286 1.0266 1.0264 1.0263 1.0261 1.0259 1.0257 1.0256 1.0254 1.0252 1.0250 1.0248 1.0247 1.0245
36 1.0294 1.0273 1.0272 1.0270 1.0268 1.0267 1.0265 1.0263 1.0261 1.0260 1.0258 1.0256 1.0254 1.0252
37 1.0301 1.0281 1.0279 1.0278 1.0276 1.0274 1.0273 1.0271 1.0269 1.0267 1.0265 1.0264 1.0262 1.0260
38 1.0309 1.0289 1.0287 1.0285 1.0284 1.0282 1.0280 1.0278 1.0277 1.0275 1.0273 1.0271 1.0269 1.0267
39 1.0317 1.0296 1.0295 1.0293 1.0291 1.0289 1.0288 1.0286 1.0284 1.0282 1.0280 1.0279 1.0277 1.0275
40 1.0325 1.0304 1.0302 1.0301 1.0299 1.0297 1.0295 1.0294 1.0292 1.0290 1.0288 1.0286 1.0284 1.0282
Salinity Calculators
Salinity, D and Conductivity
http://fermi.jhuapl.edu/denscalc.html
Salinity for Conductivity without D
http://gaea.es.flinders.edu.au/~mattom/Utilities/salcon.html
Salinity with D only
http://www.phys.ocean.dal.ca/~kelley/seawater/density.html
Hydrometer cal and Correction Temp Calcualtors and to include CO2 in seawater, plus others like WC
http://www.hamzasreef.com/Contents/Calculators/index.htm
Salinity and Sg cal. and temp correction
http://reefkeeping.com/issues/2004-07/rhf/conversion.htm
A full SG table for a 77F Hydro
http://reefkeeping.com/issues/2004-07/rhf/table1.pdf
And lots of Randy articles on Salinity, like 5 of them
Many people use these
On another subject, how is this future product for controlling Bryo going ?
So, have a nice day and glad you showed up
I have been is this hobby for +40 years, knew your dad well, and helped him out on some of his products.
Well, I'm afraid you have me at a disadvantage here, I don't know your "real" name... I'd be curious to know who you are. In any event if you'd like to chat you can send me an e-mail to "greg @ seachem . com" (altered to avoid spamming webbots!).
but then again not everybody visits websites/forums and some not at all. Why not just put a table in the Bucket
Agreed, we already have such a chart. We are trying to make the instructions as user friendly as possible by doing the work for the consumer so they don't have to hunt down a website. So we provide a simple equation on the bucket to convert H to S and we also have a simple chart (just like the one you suggested, except we only show the values at S=35 as that is the target we recommend)
Regards,
-Greg Morin
CEO
Seachem Laboratories, Inc
Well, I'm afraid you have me at a disadvantage here, I don't know your "real" name... I'd be curious to know who you are. In any event if you'd like to chat you can send me an e-mail to "greg @ seachem . com" (altered to avoid spamming webbots!).
but then again not everybody visits websites/forums and some not at all. Why not just put a table in the Bucket
Agreed, we already have such a chart. We are trying to make the instructions as user friendly as possible by doing the work for the consumer so they don't have to hunt down a website. So we provide a simple equation on the bucket to convert H to S and we also have a simple chart (just like the one you suggested, except we only show the values at S=35 as that is the target we recommend)
Regards,
-Greg Morin
CEO
Seachem Laboratories, Inc
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