I honestly have no clue what to do yet. The 29 was a comm tank until a algae bloom over a 4 day period killed off everything but my 6 cories. And the 10 was a super planted betta tank but he was a old fella, had him for 3 years. Now I have no idea. I wanted to do a archer fish species tank in the 10 with a single archer and maybe some fiddlers.