I have 9 neon tetras, 7 black neon tetras, 4 corys, 2 keyhole(like 1/2 inch big), 29G 24 long, 12 wide, 19 tall. I was thinking about adding something more to the tank. Can someone post some pics of a killfish for me. And could I possibally add a killfish to my 29G tank? Also if you have any experinces with them?