ADF in Betta tank?

[Hidr]

What size tank? You need at least a five just for the two you have. So unless you have bigger then that you shouldn't add adf's. I use to keep mine with my betta. But they were in the tank first and he was added at a very young age. I have heard some people say it works and some say it don't.
Mostly in your case size of tank is important and being able to set up another tank in case things don't work out.
I got my adf's from the pet shop.

[Elliriyanna]

I have a 5 gallon but it is NOT standard dimensions. Please look at the link.

Actually the two I have with proper filtration could have as little as a 2.5 gallon but I refuse to go smaller than a 5 gallon ...