I have a 20 gallon freshwater aquarium since september of '20. I have 2 angel fish, 1 red tailed black shark, 2 guppies & 1 algae eater. I also have 3 live plants & assorted artificial plants. Anyway my ph sits around 6.6, ammonia & nitrite are 0ppm but nitrates are 80 ppm or slightly higher. I do 25% water changes and siphon the gravel once per week my temperature is 77 f and I use Kent marine pro plant 3x's per week with my live plants.
Anyway I had 2 gold dust mollies & 2 black mollies that were healthy for a couple months & then , one by one, all got this "sunken in stomach look" and died. The other fish look great & eat well. Any suggestions for my situation? Am I doing anything wrong possibly?
Anyway I had 2 gold dust mollies & 2 black mollies that were healthy for a couple months & then , one by one, all got this "sunken in stomach look" and died. The other fish look great & eat well. Any suggestions for my situation? Am I doing anything wrong possibly?