Solubility of KH2PO4 in water

**jiajuen900** · 23rd Mar 2010, 17:24

Hi, want to mix khspo4 solution for dosing. Does anyone know the solubilty? like how many grams per 100ml of water

Thank

**Shadow** · 23rd Mar 2010, 17:38

You can easily google KH2PO4 for solubility info.

But I guess the most important for you is to find out how many gram to increase 1ppm in your tank. There are many calculator available, Fertilizator from APC, chuck fert calculator as well as calculator at my blog

**jiajuen900** · 23rd Mar 2010, 18:02

im using your blogs calculator and fertilator from APC. I tried googling but couldnt really get a answer. But after calcultating seems only need really small amount so it should be fine. I think.....

A question regarding your blog calculator

It is ( blank ) grams mixed with ( blank ) ml of water and 1ml of that solution gives you ( blank )ppm in ( blank )Litres of tank water.

**Shadow** · 23rd Mar 2010, 18:41

ok its a bug when all blank... whahaha

**jiajuen900** · 23rd Mar 2010, 19:24

oops i phrased the question wrongly... Sorry. Im trying to ask how your calculator works

To try and phrase it better i think... The calculator measures the ppm of phosphates or potassium, one ml of the fert solution.?

Fert solution = how many grams of powder + how many ml of water?

**Blue Whale** · 23rd Mar 2010, 20:25

http://www.theaquatools.com/fertilization-calculator (user friendly)

After post edit at 10:42pm:
When using the above calculator, use AQ Calculator to determine your tank volume in L first. http://www.aquaticquotient.com/forum/aq_calculator.php (Much user friendly)
Recommended readings are also taken from Tom Barr (Also one of AQ active forumer).

**Shadow** · 23rd Mar 2010, 21:48

Originally Posted by jiajuen900

oops i phrased the question wrongly... Sorry. Im trying to ask how your calculator works

To try and phrase it better i think... The calculator measures the ppm of phosphates or potassium, one ml of the fert solution.?

Fert solution = how many grams of powder + how many ml of water?

1) you select which fert you want to dose from drop down menu
2) put how many gram or teaspoon or table spoon or ml of you choosen fert. Just fill one of them
3) If you want to dilute it first, enter the amount of water you dilute it with. if you directly drop it into you tank, just enter 0
4) lastly enter your tank volume, either in gallon (us) or liter

the calculator will calculate how many ppm added to your tank for each 1ml of solution (if diluted). If you directly drop it into your tank, it will calculate how many ppm you just added.