Ok so I'm pretty new to this whole Betta thing. We've had fish and we've had bettas before but we were never that serious about them. We've decided to become serious about them! :) We've got a 10 gallon set up right now with two divided smaller tanks inside of it. We've got 3 males and one female and we were going to do some breeding. We've got water in the bigger tank with a heater trying to regulate the smaller tanks temp for now. The heater I bought said for 5-15 gallons it would keep the water at 78. I have yet to see the water go above 72...and the 10 gallon isnt even half full! There's nothing to set on this heater it just says it maintains 78. I've also thrown a couple plant bulbs in the water. The package said to just toss it in and watch them grow, keep the lights on about 8 hrs a day and thats about all it says. One is floating and the other one sunk to the bottom lol Not sure if that's supposed to happen. Do I need a air pump? I've got a filter hooked up but not enough water in the tank to run it and I've read your not supposed to use the filter while breeding them anyways? Well, I've got to get ready for work but I'm sure I'll have lots of questions and things I'd like to chat about later!!