notswimming

Can someone help me? I have a new fish and it's a Blue Dwarf Gourami and I've had him for about a week. Suddenly, starting today, he has been staying the the top of the water and trying to get air. But we just put in an aerator and he hasn't changed but gotten worse? He isn't swimming and he's...

hi everybody! I have 1x Blackmoor and 1x Fantail in my biorb 15L, I've had the tank set up since October and the Blackmoor is original to my tank after 6-7week of tank fish less cycle! Got my fantail about 2weeks ago as I felt like my Blackmoor was lonely and always was looking for attention...