Hoovercat
Aquarium Advice Freak
I got my chemicals from Greg Watson today and had a question concerning the K2SO4. I've got Chuck's calculator so I can figure the amount to dose to the recommended level (20 ppm) but there isn't a test for K available AFAIK. How do I figure the tank's uptake for later doses? Nitrates and Phosphates I can check but how much K should I add at water changes?
