Squirt Posted June 7, 2012 Report Share Posted June 7, 2012 I recently bought some of Valrays Fertilizer on trademe, and now realize that there is a lack of nitrates, I assume this is due to the supplier thinking that there will be fish producing ammonia, nitrites, nitrates ect. This solutions contains 2% Magnesium Sulfate (MgSO4) 8% Potassium Sulfate (K2SO4) 3% Potassium Nitrate (KNO3) 4% Trace Elements 83% Water So N:P:K in these ratios 3:0:19? Or am I working these ratios wrong? I beleive the common ratio is 4:1:4. So do I need to add nitrates? And if I do, where can I source nitrates? Thanks Quote Link to comment Share on other sites More sharing options...
blueether Posted June 7, 2012 Report Share Posted June 7, 2012 3% Potassium Nitrate (KNO3) Quote Link to comment Share on other sites More sharing options...
Squirt Posted June 7, 2012 Author Report Share Posted June 7, 2012 Yeah, but would that be enough? Or should I dose Seachem Nitrogen as well? Quote Link to comment Share on other sites More sharing options...
blueether Posted June 7, 2012 Report Share Posted June 7, 2012 :oops: miss read your post I think the best place to find nitrates is in home made e... excuse me but there are men at the door in black leather boots, have to go now Quote Link to comment Share on other sites More sharing options...
Squirt Posted June 7, 2012 Author Report Share Posted June 7, 2012 I think using seachem nitrogen which contains KNO3 would best suit my needs. But at how much? Quote Link to comment Share on other sites More sharing options...
Squirt Posted June 8, 2012 Author Report Share Posted June 8, 2012 Wait for a reply from Valray to see how much nitrogen I need to dose. According to seachem formula .25vn=m where v is the volume of the tank in gallons, n is how much you want to raise the nitrates ppm, and m is the mls you need to add Then .25*5*20= 25mls of Seachem Nitrogen? This seems like a lot to dose (any insight?) Quote Link to comment Share on other sites More sharing options...
amtiskaw Posted June 8, 2012 Report Share Posted June 8, 2012 Stockers sell potassium nitrate by the kg. Heaps cheaper than buying Seachem 8) Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted June 8, 2012 Report Share Posted June 8, 2012 Just don't talk about double nitrogen bonds or talk with an accent. Quote Link to comment Share on other sites More sharing options...
blueether Posted June 8, 2012 Report Share Posted June 8, 2012 Just don't talk about double nitrogen bonds or talk with an accent. as I said... excuse me but there are men at the door in black leather boots, have to go now Quote Link to comment Share on other sites More sharing options...
Squirt Posted June 8, 2012 Author Report Share Posted June 8, 2012 Can someone check my Maths for me? :slfg: Mass of KNO3 = 200000mg Mass of NO3:K= 62:39.1 (ratios of molars masses?)= 122,651mg:77,349mg mass of water=0.5kg Nitrate Ppm=mass of solute/mass of water =122,651mg/.5kg of water =245302ppm Then Still on nitrates Initial concentration x initial volume = final concentration x final volume So Initial concentration=245302ppm Initial volume=x mls Final concentration=20ppm Final volume=20000ml So to get 20ppm nitrates Initial volume=(final concentration x final volume)/initial concentration =(20ppm x 20000ml)/245302ppm =1.6ml [Potassium 77349/.5 =154698ppm (154698ppm x 1.6)/20000= final concentration =12ppm] Not sure how much that last part makes sense but not what I'm completely concerned about. Quote Link to comment Share on other sites More sharing options...
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