Okay so I have a little female baby betta right now, she’s really cool you know she’s in a 1.5 gallon with some fake plants, a heater, no filter since it was all a bit too strong for her. But we do frequent water changes. Anyway I usually have a bunch of corys in my adult male betta tank. I have one right now who has no eyes, and I’m worried that my betta who’s usually cool is taking advantage of this. I’d like to move him with my baby, I don’t really see how this little blind Corry could be much of a threat. Would they be okay together? Could I keep him in the tank without a filter? I do frequent water changes.... or should I add a light filter for the both of them?