I have read a lot online and browsed here. Conflicting statements all around. I just want to confirm if I placed a blue gourami (2-3") on my community tank which is composed of 4 corys, 8 cardinal tetras, 2 gbrs. Would they be ok? Edit: If not what would be the final piece compatible with my tank? (Mid to top as am heavy stocked with mid to bottom). Thank you in advance.