Fintastic!
Fishaholic
Over the past few weeks my nitrate has been going from 20 to 40 and back to 20 again. I've checked twice this week and it's been 20. Current readings are ammonia 0, nitrate 20, ph 7.6, nitrite 0. Do you guys know what this means and is it harmful? It's a ten gal tank with 3 platys, one molly and 3 corys. The tank is 4-5 years old so well cycled. Thanks guys!