damamge

I have a 55 gallon stocked with: 8 neons 1 honey gold gourami 6 glofish 2 corydoras 3 Siamese algae eaters 5 white cloud minnows The tank has sand substrate and the decorations include live plants, a madrona branch, and a couple of rocks. The parameters are as follows: Temperature 78°F Ammonia 0...