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Hellboy Bettas becoming black?
This is the second Hellboy betta that I I have kept for some time, and in both cases, the fish gradually started to become more and more black. I am not really concerned, more curious. Has anyone else experienced this?
Also, I know about Jerry's tail tumor. He does too, and he is fine with it.
Photos are ordered from most recent going back to when Jerry first arrived, which was about 6 months ago.
u/ATrain664 — 3 days ago