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Hi, I have 10 male guppies in a 65 gallon tank with a few other fish. I love how long the male guppies dorsal fins get, they flow like a flag or streamer. I have notice, obviously the older the fish the more mature and longer the fin is. However, I just noticed the one with the longest dorsal fin (it flows almost to the end of his pelvic fin) is split into two “streamers”. Is this common for male guppies? Is he meant to have it in two “streamers” or is this from the males picking on each other since there are no females in this tank? I have noticed some of the pelvic fins of my guppies have some nips out of them but nothing severe (it could be from my angelfish, the submissive one recently had been caught chasing a few guppies away. But normally cohabitate perfectly fine).