Are Chinese Fighting Fish (Betta) poisonous?
No, they are not at all poisonous. Here is an article I wrote about keeping them as desktop pets: http://hubpages.com/hub/The-Siamese-Fighting-Fish-As-A-Desktop-Pet I hope it is helpful to you. I have kept females successfully in community tanks. Males don’t tend to fare well because their long flowing fins make them a target for other fish to nip and nibble. They really are not all that aggressive with fish other than other male betas. They tend to get picked on and beat up quite a bit. Hope this helps!
