pics of your aquascaping?
- Thread starter LovenBama
- Start date
Tomoko Schum
New member
I made the above comments because people often mix up units, especially when talking to each other. I work in quite a mixed up world talking in liters, gallons, cubic meters, centigrade, kgf/cm2, psi, MPa, etc, etc.
Dr. Shimek recommends the following in the above article:
"salinity can vary a bit. Keeping it in the range of 36 to 37 psu is prudent and minimizes the stress on the animals, but some slight variations outside this range are inconsequential."
Dr. Shimek recommends the following in the above article:
"salinity can vary a bit. Keeping it in the range of 36 to 37 psu is prudent and minimizes the stress on the animals, but some slight variations outside this range are inconsequential."
wpecoul
New member
Yeah, I went and read that article when you posted the link - thanks for doing that. One question - what does that 36-37 PSU level correspond to roughly in SG or ppt? I can't really find any conversion info online. Just wondering where that sits compared to the 1.020-1.027 range we're all used to in the hobby.
Tomoko Schum
New member
PSU is Practical Salinity Unit. Oceanographers and marine chemists use the term to denote the use of the Practical Salinity Scale.
From what I have read so far, I got the feeling that there is no direct conversion between psu and ppt although they are supposed to be very close.
According to a source called NASA Science Glossary, "Practical Salinity Unit is used to describe the concentration of dissolved salts in water, the UNESCO Practical Salinity Scale of 1978 (PSS78) defines salinity in terms of a conductivity ratio, so it is dimensionless. Salinity was formerly expressed in terms of parts per thousand (ppt) or by weight (parts per thousand or 0/00). That is, a salinity of 35 ppt meant 35 pounds of salt per 1,000 pounds of seawater. Open ocean salinity is generally in the range from 32 to 37."
1.040 sounds way too high to me. I have inadvertently let the salinity of the water in my quarantine tank to climb beyond 1.030 before. It did not have any fish or coral at the time, but I had a lot of pods in it. I recall a lot of my pods died off around 1.035. I was not conducting a weird experiment or anything. I just forgot about the tank after taking out the subject of quarantine. I took a measurement simply out of curiosity when I saw the QT tank gone lifeless....
From what I have read so far, I got the feeling that there is no direct conversion between psu and ppt although they are supposed to be very close.
According to a source called NASA Science Glossary, "Practical Salinity Unit is used to describe the concentration of dissolved salts in water, the UNESCO Practical Salinity Scale of 1978 (PSS78) defines salinity in terms of a conductivity ratio, so it is dimensionless. Salinity was formerly expressed in terms of parts per thousand (ppt) or by weight (parts per thousand or 0/00). That is, a salinity of 35 ppt meant 35 pounds of salt per 1,000 pounds of seawater. Open ocean salinity is generally in the range from 32 to 37."
1.040 sounds way too high to me. I have inadvertently let the salinity of the water in my quarantine tank to climb beyond 1.030 before. It did not have any fish or coral at the time, but I had a lot of pods in it. I recall a lot of my pods died off around 1.035. I was not conducting a weird experiment or anything. I just forgot about the tank after taking out the subject of quarantine. I took a measurement simply out of curiosity when I saw the QT tank gone lifeless....
thatguy559
New member
heres mine 225g mix reef
Tomoko Schum
New member
I like your open rockwork, blaked 
.
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shirley386
Member
How did Hurricane Gustav destroy your tank?
it's her fault
New member
Will & Tomoko,
Thank you for making me re-think this salinity issue. After giving Jim a call he confirmed that 1.024 was the ideal reading not 1.04. We seemed to have miscommunicated previously as to what was ideal. Always good to double check the facts before assumming you know what the other person is trying to tell you. My previous reading of 1.035 with my hydrometer reading incorrectly did not cause any problems, however, it seems clear that with my new refractometer I could have done some real damage. Thank you for leading me in the right direction and preventing a catastrophe.
Do you guys use a hydrometer or a refractometer?
Bill (doorlady's husband)
Thank you for making me re-think this salinity issue. After giving Jim a call he confirmed that 1.024 was the ideal reading not 1.04. We seemed to have miscommunicated previously as to what was ideal. Always good to double check the facts before assumming you know what the other person is trying to tell you. My previous reading of 1.035 with my hydrometer reading incorrectly did not cause any problems, however, it seems clear that with my new refractometer I could have done some real damage. Thank you for leading me in the right direction and preventing a catastrophe.
Do you guys use a hydrometer or a refractometer?
Bill (doorlady's husband)
LovenBama
New member
LOL...gotta love the name Bill...but it should have been "it's all MY fault" cause you spoiled her that way:beer:
so back to the topic here of aquascaping....thinking I should build high with a number of caves starting from front left and work around the back to the right front or leave an empty space in the whole center? You know bouts what I have as far as coral in the tank and thinkin some of what's on the sand needs to be mid to high in the tank for better color and growth....or should I not build in front of the overflow? help me out here...ya know I jumped into this hobby rather fast and didnt get a whole lot of info about the rock work before I started and all I hear from Big Birl is "build up" and even more thanks to Will and Tomoko for setting us straight on the salinity...guess maybe I need a new phone number ..like 1-800-help-Wil? LOL...jk Bill :lolspin:
so back to the topic here of aquascaping....thinking I should build high with a number of caves starting from front left and work around the back to the right front or leave an empty space in the whole center? You know bouts what I have as far as coral in the tank and thinkin some of what's on the sand needs to be mid to high in the tank for better color and growth....or should I not build in front of the overflow? help me out here...ya know I jumped into this hobby rather fast and didnt get a whole lot of info about the rock work before I started and all I hear from Big Birl is "build up" and even more thanks to Will and Tomoko for setting us straight on the salinity...guess maybe I need a new phone number ..like 1-800-help-Wil? LOL...jk Bill :lolspin:
jasontammy
New member
Here's a picture of Jason's 210. Just topped off, so a little cloudy
In order to get good flow, we put in an eggcrate rack about 3" off the sand and stacked the rock on it. Lots of supports throughout. You end up with a lot less 'muck' in the bottom. Then we tried to hide the eggcrate somewhat, but in about 2 months, we've got significant coral line to cover the eggcrate.
Here's mine, the sole purpose of which is to keep me out of his. Sorry, not really good quality but you can get the gist.
In order to get good flow, we put in an eggcrate rack about 3" off the sand and stacked the rock on it. Lots of supports throughout. You end up with a lot less 'muck' in the bottom. Then we tried to hide the eggcrate somewhat, but in about 2 months, we've got significant coral line to cover the eggcrate.
Here's mine, the sole purpose of which is to keep me out of his. Sorry, not really good quality but you can get the gist.
LovenBama
New member
what I'm thinking but also wanna incorp Tammy's idea of the eggcrate as support under the rock...
of course blaked is in Baton Rouge, LA and that's really not too far...
wonder if he/she is for hire?
Sorry about the lose blaked. Have you started another tank yet? I'd love to see pics if you have
of course blaked is in Baton Rouge, LA and that's really not too far...
wonder if he/she is for hire?
Sorry about the lose blaked. Have you started another tank yet? I'd love to see pics if you have
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