I have a 30 gallon tank with six bettas and a six neon tetras. I also have a 20 gallon tank with two gouramis in it.
Lately I've noticed that my neon tetras aren't getting as much food as I think they'd like, and the bettas seem stressed, especially Athena and Jackie. They have stress marks and everything. The neon tetras don't swim in a little 'flock' anymore.
In my other tank, the gouramis seem fine, but the jumbo tetras are fighting. I think that that tank is way too crowded, and I hope that's the only reason this is happening.
I've checked everything about the two tanks, ph levels, ammonia, but nothing is different than before, so I think it's simply a matter of conflicting species. I think this would be better if I left the gouramis and bettas in those tanks, and removed both schools of tetras.
I have an empty 20 gallon in my basement and a much larger one of unknown size down there, so if need arises I could seperate each species to their own. However, I was hoping to give that 20 g to Charry because I'd really like him to have an upgrade from a 5 g. So I was wondering, would it be possible to house the aggressive jumbo tetras and the neon tetras together? It's not needed of course, but I don't have all the room in the world to house my fish.