I've been researching
RTBS for hours because I've gotten my first RTBS (Valentino). Many sites agree that
most Cory will live fine with
most RTBS. I have 5 of them with Valentino and he pays absolutely no attention to them, even when near his cave or eating. I would say it's a fluke, but I've read RTBS/Cory compatibility on so many sites. Also many sites say RTBS can reach 4"-6", and I've spoken to one person who has a 7.5" RTBS.
If your tank is a regular 29 gallon tank, it is probably 24" long. In that case, the RTBS could reach 1/4 the length of the tank, and if you imagine what that would look like, it seems small for the RTBS to really have much room to swim around. Especially since he's a territorial, semi-aggressive fish....they need room. Many of the more reputable and reliable sites (and people) I've seen suggest that a 55 gallon would be best. It's just what I've read.
I agree with the Tiger Barb, but they are best in groups of 6 or more. Your tank definitely won't hold that. Not
always, but often if they are too few in number their behavior could be unpredictable and it could cause chaos in the tank. Just do some more research, it never hurts!
Just my 2 cents.
Zambize