Yes, they are very addictive! Now that I know how to keep them properly, I just want more and more! Water changes are not my favorite thing, so that's why I don't want the smaller tanks.
I could divide my 10 gallon 4 ways but I would hate that my original betta would be downgraded from 10 gallons to 2.5. But this way, would I have to change my maintenance schedule any? There are no live plants (I'm not ready for those yet) but I could get some moss balls.
I do have a 5 gallon that I could set up, but I would want to cycle it. How much water would I change a week?
And yes, I would have to stack them!