Does potassium nitrate and potassium phosphate react?

[kwirky]

I currently dose 1mg kno3 and 0.04mg kpho3 weekly but since it's weekly i often forget to do it, sometimes a couple weeks in a row with visible degradation to acro health, so i want to automatically dose it. I only have one channel free on my kamoer dosing pump. Can i mix potassium nitrate and potassium phosphate in an aqueous solution at the same ratio I've been dosing the dry ferts without them reacting?

 

[Dan_P]

I currently dose 1mg kno3 and 0.04mg kpho3 weekly but since it's weekly i often forget to do it, sometimes a couple weeks in a row with visible degradation to acro health, so i want to automatically dose it. I only have one channel free on my kamoer dosing pump. Can i mix potassium nitrate and potassium phosphate in an aqueous solution at the same ratio I've been dosing the dry ferts without them reacting?

They do not react or interact but the mixture could good algae and bacteria food. This could be a problem if you store the dilute mixture.

 

[Randy Holmes-Farley Verified Community Expert]

I also recommend against potassium nitrate unless you are tracking potassium as it may rise quite substantially.