First let me clarify that even I don't use my skimmer and I don't do waterchanges on this specific reef tank I'm not here to advocate or support any of those practices... So please let's not turn this thread into a skimmer vs ATS, or lazy reefers that don't do WC, you get the point...
5 Years ago I setup this 400 gallon reef...
Year 2 I stopped doing water changes and setup and Algae Scrubber...
Year 3 I turned off my skimmer...
No GFO, no BioPellets, only 2 cups of vertex GAC changed monthly
I dose DIY 2 part additives on a constant basis based on Randy Holmes Farley recipe #1 to maintain MG, CA and Alk
The salt mix used was Instant Ocean
I dosed Iodine once in a while, just because... I had the bottle laying around...
The same for Iron Fumarate from the pharmacy, to give a boost to the algae scrubber.
Once every 1 or 2 months when I noticed slower grow rate I use NaCl free salt, aka Tropic Marine Pro Coral Minerals, and noticed improved growth, I guess it is additing something that gets depleted because after a few months it slows down again.
I do my top-off with 0 TDS water from an RODI unit, test the 0 TDS comming out constantly.
Two months ago I went into a problem with very high calcium and very low alk caused by some dosing pump malfunction... (read here http://reefcentral.com/forums/showthread.php?t=2429502)
I came back from MACNA and decided to try the Triton.de ICP-OES testing service looking to find some useful information on what happens when you have Algae as the only nutrient export vehicle for almost 2 years, and at the same time you don't do waterchanges.
Before sending the water for testing I tested it and got these values:
- Salinity 36.5 ppt using a calibrated refractometer
- Alk at 8.5 dkh using Salifert test kit
- Calcium at 570 using ELOS test kit
- Mg at 1450 using ELOS test kit
- Phosphorous at 18 ppb that is 0.055 ppm PO4 according to this
- Silicon at 0.03 using Salifert test kit
Here are the results:
And got these summary warnings
I find very interesting those very high Iodine levels, assume it's because of Algae feeding and the sporadic iodine dosing I do... but is there nothing that consumes it?
Regarding the elements that are low (Potassium, Strontium, vanadium,Zinc and Manganessum) I am sure I can start adding those as part of some additives... not sure about the specific additives but it's matter of doing a little research... could use triton products... but they don't have presence where I live so that option does not apply...
Regarding the low salinity, what is happenning here? my refractometer reads 36.5, tested many times and with another refractometers also... why is NA low? the warings say to check my salinity or perhaps a ionic unbalance... how to fix it?
What I would like to get more understanding is on the elements that are high or very high, are they dangerous? could they be doing harm to something?
And ofcourse how lo lower them to acceptable levels... triton suggests buying their PURE salt mix and do water changes, the problem is that I don't have access to that product where I live... Triton doesn't sell it here yet...
Would love to hear/read your comments !!
5 Years ago I setup this 400 gallon reef...
Year 2 I stopped doing water changes and setup and Algae Scrubber...
Year 3 I turned off my skimmer...
No GFO, no BioPellets, only 2 cups of vertex GAC changed monthly
I dose DIY 2 part additives on a constant basis based on Randy Holmes Farley recipe #1 to maintain MG, CA and Alk
The salt mix used was Instant Ocean
I dosed Iodine once in a while, just because... I had the bottle laying around...
The same for Iron Fumarate from the pharmacy, to give a boost to the algae scrubber.
Once every 1 or 2 months when I noticed slower grow rate I use NaCl free salt, aka Tropic Marine Pro Coral Minerals, and noticed improved growth, I guess it is additing something that gets depleted because after a few months it slows down again.
I do my top-off with 0 TDS water from an RODI unit, test the 0 TDS comming out constantly.
Two months ago I went into a problem with very high calcium and very low alk caused by some dosing pump malfunction... (read here http://reefcentral.com/forums/showthread.php?t=2429502)
I came back from MACNA and decided to try the Triton.de ICP-OES testing service looking to find some useful information on what happens when you have Algae as the only nutrient export vehicle for almost 2 years, and at the same time you don't do waterchanges.
Before sending the water for testing I tested it and got these values:
- Salinity 36.5 ppt using a calibrated refractometer
- Alk at 8.5 dkh using Salifert test kit
- Calcium at 570 using ELOS test kit
- Mg at 1450 using ELOS test kit
- Phosphorous at 18 ppb that is 0.055 ppm PO4 according to this
- Silicon at 0.03 using Salifert test kit
Here are the results:
And got these summary warnings
I find very interesting those very high Iodine levels, assume it's because of Algae feeding and the sporadic iodine dosing I do... but is there nothing that consumes it?
Regarding the elements that are low (Potassium, Strontium, vanadium,Zinc and Manganessum) I am sure I can start adding those as part of some additives... not sure about the specific additives but it's matter of doing a little research... could use triton products... but they don't have presence where I live so that option does not apply...
Regarding the low salinity, what is happenning here? my refractometer reads 36.5, tested many times and with another refractometers also... why is NA low? the warings say to check my salinity or perhaps a ionic unbalance... how to fix it?
What I would like to get more understanding is on the elements that are high or very high, are they dangerous? could they be doing harm to something?
And ofcourse how lo lower them to acceptable levels... triton suggests buying their PURE salt mix and do water changes, the problem is that I don't have access to that product where I live... Triton doesn't sell it here yet...
Would love to hear/read your comments !!