Quote:
Originally Posted by reefwars
if your going with the vinegar chart ( or vodka conversion)_....16 weeks is a bit over careful ...most do it in four weeks and similar to this
0.1 ml per gallon for 7 days
0.2 ml per gallon for 7 days
0.3 ml per gallon for 7 days
0.4 ml per gallon for 7 days
and going on up from there if needed , if nutrients are high to begin with then you can go as high as 1 ml per gallon , once your no3 and po4 drop to zero then you cut the dose back to a maintenance dose.
most people have it by week 4 unless they were pretty high to begin with.
no3 and po4 can become limiting in a closed system and bacteria need both in order to build mass so you may not hit zero if one or the other isnt available in numbers needed.
cheers
denny
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Typically, you become limited by nitrate unless you are using GFO or lanthanum chloride. This is because of two things: bacteria use nitrogen in a high ratio as compared to phosphorus, and bacteria also convert some additional nitrate into nitrogen gas. Sometimes, though, some people have found they don't need to use a phosphate remover, or at least use a very small amount