11-12-2011, 07:36 PM
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This fish, Puntius nigrofasciatus, is one of the loveliest and more peaceful of the barbs. But it is still a barb, and males are feisty. I recently acquired a group of 8, four each male and female, and they are non-stop activity. If you can, I strongly suggest returning some of the males for females.
In store tanks fish are often colourless, and it is not always easy to distinguish sexes. Take a close look; males have some red in the pelvic and anal fins, females do not; and this is present even in young fish. A ratio of equal male/female would be advisable, or an extra female. They are active, so this is going to fill your 26g. And I would get 8 total, the more there are in the group, the more dispersed any aggression will be.
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