I'm getting a 55 gal setup at the end of the month. I will be putting all inhabitants from the 29 gal in there, except the snail. All inhabitants from both 10 gals will be moved to the 29 gal. I have 2 questions, what else could possibly be put with my tiger barbs and giant danios in the 55? Also, I would like to move my 2 bettas to one of the 10 gals with a divider. Would this work, and is there a dark colored divider that will make them unable to see each other? Any and all suggestions are appreciated and welcome.