When Is Potassium Sulfate Needed?

[smiller]

KS204 seems to be a commonly sold fert but I rarely see that people actually use it. When would you use this in addition to or instead of other ferts?

[Rainer]

I use it as K supplementation in my occasionally high light tank. Sometimes P and N levels rise higher than I'm comfortable with, so I burn them off (don't dose). Since I've seen signs of K deficiency when doing this and it's apparently nontoxic to inverts and fish, I now dose KSO4.

[happi]

Originally Posted by smiller

KS204 seems to be a commonly sold fert but I rarely see that people actually use it. When would you use this in addition to or instead of other ferts?

dose it when you dose less KNO3, dose it when you have high Nitrate in your tank.

i dose 40+ppm of K2SO4 per week.

[smiller]

That's what I was thinking. Thanks very much.