So, I've been wanting to do this a looong time for my bettas, but I haven't a clue in the world what to do.

I want to get a 10 gallon and divide it for 4 bettas. But.. what could I make homemade dividers of?

And what are the basic things for an aquarium? I'm really not crazy on gravel, I prefer pebbles or sand.. so.. yeah.

I'm just wondering basics of aquariums, maintaining them, and what all I would need for four bettas.

Heater, filter?

Anything you feel like adding to that, too!

Thanks.