Today I got out my tetra 1.5 gallon fish tank and put a betta in it. But how many water changes will i need to do? It has no filter and I use gallons of purified water to fill it. I also feed him flake food once a day.
I had a my betta fish die recently. The old tank that he was in was 1.5 gallons and no heater or filter. But for the new betta fish I thought of getting a filter there will be a link to the filter I thought of getting below.But my question is it the right filter? because i now they don't like a...