The boring name
Aquarium Advice FINatic
Hey guys my black tetras are very inactive. I have a 40 gallon hexagon tank with live plants, a big canister filter, HOB filter (small one). The tetras are about a week into this tank with 4 platy and a guppy. The other fish are doing awesome. Moving around and eating just fine, but the 4 black tetra just sit near the top or one corner and barley move. I thought maybe it was the oxygen it being a tall tank so I added an airstone and they seem to have gotten worse. Could it be the bubbles scaring them into the corner? I also had 4 cory but they all died slowly for some odd reason. The tank had seeded media moved into the filters from a established 5 year old 55 gallon. The water temp is 85 degrees, is this to much? any help is appreciated!