My unpopular opinion here is that fancy Betta fins look like dead, decaying plants. That gets them chomped on, and if smaller fish discover they're a tasty source of protein, Bettas can end up pretty miserable with bad haircuts. The small fish aren't being aggressive - they are being fooled and making discoveries from it.
Aggressive wee turds would be polar blues, which might kill the betta and tetras just for something to do. They may be petrie dish specials, but they are built with fish that have a desperate to need to carve out space to breed in a very tough natural environment, and they still do damage in spite of their deformities.
12 green neons must look very good. That's a popular fish related opinion.
Aggressive wee turds would be polar blues, which might kill the betta and tetras just for something to do. They may be petrie dish specials, but they are built with fish that have a desperate to need to carve out space to breed in a very tough natural environment, and they still do damage in spite of their deformities.
12 green neons must look very good. That's a popular fish related opinion.