I have a 125 gallon cycled for 6 months now. Ph 8.2, Amm 0, No2 0, No3 30. 7 clown loaches, 7 platys and growing, 6 candycane tetras, 3 cardinal tetras, 6 danios, 2 plecos, 4 dwarf gouarmis, fluctuating pond snail population that gets thinned out by the loaches. Planted tank. I noticed one of my...