Hello! I have stocked my 29 gallon planted long tank with: 6 fancy guppies 8 cardinal tetras 6 otocinclus catfish 1 bristlenose I realize this may look a bit full but now I would like a centerpiece fish I would like your opinions but I would also like to know about how many either kribs, or dwarf gourami I can have and how many should be male or female. I would also like to know whether or not a butterfly fish is an option or any other fish like it. Also if my current stocking is ok. If you can answer any of these questions that would be greatly appreciated! Thank you in advance.