Hi my name is chris I'm pretty new here and to the hobby. I have a 33g planted freshwater tank with two black moores , 9 white clouds and two apple snails. And a 10g with 2 hillstream loaches. Did have three but one went belly up this afternoon for no good reason. Water is fine 0 ammonia 0 nitrite 10 nitrate and ph 7.4. The other loaches are fine. They are p cheni veriety by the way. Any advice on these would be cool.