Planted Tank Obsessed
Join Date: May 2011
Location: Edmonton AB Canada
Oh smart people of planted tank, help me with my EI math
Ok so... I recently bought some ferts for EI dosing.. and cause I live in canada, soooooo because apparently canadians are scared of explosives they refused to sell me KNO3 in dry form as per I could make it into a bomb.
So I now have solution of 500g into 2L of water and am trying to figure out the math of how much a 1/16th dose of dry KNO3 would be equivalent to of this solution.
So I whipped out the old chemistry brain and tried to figure out what that would be equivalent to by using the density of KNO3 at 2.109g/cm3 and so on and so forth.. I have taken a picture of my math I will include as it's easier to explain.
If I did this right, I can use that same kinda math to make solutions of my other ferts and just use some syringes and needles from work to draw up and dose solutions(I'd like to have separate bottles and not mix them), but I'm not sure if I did it right in the first place sooooo I'd like y'all to check haha cause it's been a while since I did this type of math.
Just to double check, if I then mix my other ferts into water, the total volume of liquid will not change because it will be a solution, correct, as opposed to a mixture in which case the volume WOULD change. For example, if I mix 100g of KSO4 into 500cc of water, the total volume after the KSO4 is dissolved is still 500cc, correct?
Man, I can get 100% in advanced bio and still struggle through chem haha.
ALLLLSOOOOO... In tom barr's original EI post on.. whatever forum he posted it, he listed a gh booster (I skipped cause our tapwater is moderate-hard hardness), KNO3, KSO4, and KH2PO4 along w/ trace elements. So I went and bought all those, got home, and realized in the EI dosing there is no KSO4?? Is that just in case I don't want to raise no3 but still need to dose K? Allllso... if I mix up solutions of all of the ferts, do I need to refrigerate any of the solutions?