Hi, I am wondering about a few things.
1. Do I need to use an air pump of any kind?
2. I am having a really hard time with the filter... I bought one but the flow is too much for the betas. I can't find a really good internal filter that doesn't cost an arm and a leg. (This has turned out to be impossibly expensive already!) What else can I do? Is there a way to slow down the amount of water that's coming in or something? Ideas?
3. What are absolute necessities for the tank?