Hello all and a happy holiday to everyone:))
I have a 20 gal high tank with a Fluval HOB rated for a 70 gallon. All that is in the tank are 4 cories. Driftwood, plastic plants and other decorations are in the tank. The parameters are as follows: PH 7.4, Ammonia 0, Nitrite 0, Nitrate 10
My...