I have a 5gal that right now is housing baby mollies. They are soon leaving the nest and I am wanting to change this tank a bit. I like the look of sand but have some worries. The filter is a Whisper in-tank, and the new fish will be a betta and some otos. I would like one or two very low light plants aswell. (I only have 1.5 wpg) My questions are will the sand settle or will it get sucked up by the filter? Is sand ok for otos? And can I plant anything in sand or will no plant be happy in it? Any advice on this would be great. :duh: I am at a bit of a loss on this.