I still cannot figure out how to dry dose Ferrous Gluconate into my 15 gallons tank ....anybody dosing Ferrous Gluconate into their tank?
Can i just dose dry into my tank?
Need advise if not the ferrous gluconate going to waste..
Store in a dark container, Hydrogen Peroxide bottles are great.
Biollante;56129 said:Hi Tug, All,
Generally the calculators will easily be more precise than I am, for my own purposes I do most arithmetic in my head. For the forum I use pencil and paper or more likely dry erasable marker and white board. I rarely go more than 2 significant digits, for my own use I seldom bother with that level of accuracy.
I round off a lot use proportions and generally do not think a variance in answer of plus or minus 5% is going to make a particular difference, given inaccuracies inherent in our measuring, estimation of water volume, biomass and purity of the chemicals we are using.
I get the calculators give people these ridiculously accurate answers in to parts per quadrillion, I just do not think our real world limitations make those numbers meaningful and in many cases are terribly misleading.
I do think it is worth knowing how the numbers are derived.
Personally I find most calculators tedious, I will credit Wet with having about the best no nonsense calculators around.
Barbarossa give the clear bottles a try I suppose...
There was a discussion sometime back regarding how NO3 was calculated on one of the major calculators, some asked me to write out the way I would solve the problem, I went out 3 significant digits here. For what it is worth.
hbosman;56131 said:Ok! You have me curious. I have a 46 gallon bowfront and run pressurized CO2 until the drop checker turns yellow. I burn 2x39 watts of T5HO bulbs 9 hours per day. I dose KNO3 dry with a dash spoon (1/8 of a teaspoon). I dose 4 dashes (.5 teaspoons) on water change day once per week. The fertilator says that's about 10.53 ppm per week. I input 40 gallons into the fertilator.
What would your calculations estimate?
I would does at least once again mid-week.
This is a little unfair since KNO3 is so common I have it about memorized. Knowing that NO3 makes up about 61% of KNO3.
Just “eyeballing” the numbers, I made it to be about 10-ppm NO3 since half a teaspoon of KNO3 is about 2.5 grams (based on the numbers you provided it is obvious Fertilator uses 2.6 grams) and conveniently (and obviously) 60 % of 2.5 grams is 1.5 grams NO3 equally conveniently 40 US gallons is about 150 liters so we have 1500mg of NO3 into 150 liters (I know it is actually 151.4 liters) that is 10-ppm NO3.
Calculating using the more accurate 61% NO3 in KNO3 and using 2.6 grams to the half teaspoon yields 1.59 grams of NO3 into 151 liters 10.53-ppm NO3. Close enough I think.