Ok so i plan on getting a 10G betta tank and divide it instead of getting 2 5G kits. I don't want 3 tanks in my room and my basement is where i keep my bigger tanks. Anyways my main concern is the filtration. I'll likely get a non-transparent divider and poke holes through it so water does flow or i've heard of mesh dividers.Should i place a power filter rated for a 20G or 2 smaller filters? Please let me know about the pros and cons of this. I'll likely hide the divider with plants or something. One heater should do right?