Hi! I'm still stocking my 29 gal community tank, and was wondering: which will look better, two small schools of 4-6 neon tetras and 4-6 zebra danios, or one big school of 8-12 tetras or danios? I really want them to school, but I don't think they will be very scared in my tank, because it is a community, so what should I do? I like the danios active personality and the tetras' attractive colors and active schooling. Please help!