Hi!
My tank is about 2 months old.
20 gallons
Temp 80
Ammonia 1ppm- just added prime
Ph 7.2
Nitrate and nitrite 0
Currently have 1 dwarf gourami, 3 mollies, 2 catfish, 3 tetras
My gourami is a rainbow dwarf gourami and he is turning blue on his face to his underside. He is not eating and is...