Join Date: Nov 2018
Location: Oil City PA. USA
Nothing. If your betta is aggressive and in only a 2 gallon tank than the answer to this is nothing.
Male betta do not need tank mates they do better in a smaller tank by themselves, If you want him to have tank mates then I would recommend a larger tank of 10 to 20 gallon heavily planted with lots of places for other tank mate to hide. Betta are predators. But in a larger tank and a lot of hides tank mates could (and I say could)get along.
Last edited by Old Dog 59; 10-30-2019 at 11:18 AM.