Crustaceans/Inverts/Mollusks
I have had my crystal reds and blacks for some time now and still they are not breeding, the parameters are all fine. pH is about 6.2-6.4, nitrites and nitrates are 0, Ammonia is 0. general hardness is about 4 dGH (60ppm) and kH is somewhere between 0-1 dKH. I add CO2 for the plants and the...