hatton3 You can add the N,P,and K dry, right into your filter. You and get P(KH2PO4) in a liquid form by going to your local drug store and picking up Fleet Enema. It is 100% KH2PO4. And a small bottle will probably last for a long time. And it's cheap too!!
But don't forget to check with your water company to find out what's in your tap water as a reference.
Len
But don't forget to check with your water company to find out what's in your tap water as a reference.
Len
