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I kind of made an impulse buy yesterday at my LFS for my new tank. I only got 2 to start out with, which includes a dwarf gourami and a glass barb. I really know nothing about glass barbs. Inform me.
Really popular fish. Can be nippy. Very nice looking though. Getting a big school going will make them less agressive towards other fish of their own kind.
The fish in your picture are red glass barbs. You are right, there is little information on the net about them. My LFS sells both red glass barbs and rosy barbs. I currently have one of each. They are very different in their coloration. They do school together, and I've had no problems with them nipping my other fish.
It seems they are a "version" of the Rosy Barb. I'd assume information for Rosies would apply to Glass Barbs as well. I'd definitely get 5 or so more and be prepared for them to reach 4 inches or so, like Rosy Barbs do.