I've had a school of 7 black neon tetras for about 6 months now. Initially they were very active around the tank, but now they hang out in the back corner by the heater. Any thoughts on why or how to get them social again?
Well, I don't have much experience with tetras, but I ordered my first 25 tetras a week ago, they're in QT right now. They have hiding places, and swim around the whole tank but they instantly go hide once I get up from my chair, or walk back into the room. They seem like a scared species haha