since i'm just using the lame lighting, i'll probably only add low light plants(hornwort, anacharis, java fern). This way I'm not too concerned about plant specific substrate. My dad has a UGF and plain gravel in his tank, and I have more light demanding plants like different grasses and riccia in my dad's 29g tank
I was thinking panda cories because they will look really neat on the black gravel. Also...i'm thinking 3-5 cories, and i've heard oto's should be kept in groups of 3 or bigger...any confirmation of this?