I was thinking about putting in marbles for my substrate in the 'betta heaven' i am creating. I like the way they look, and they seem to be less work, and I don't have to worry about my not-too-bright bettas trying to eat them. My lfs sells them, for 20 cents A PIECE! you have to be kidding me! Will just plain old marbles work, or do i need special ones? Would I need to boil them?
Or, does anyone else have a substrate suggestion?
Or, does anyone else have a substrate suggestion?