age

Hi everyone I am reposting since my last thread was quite some time ago. If you need context please see: https://www.fishforums.net/threads/betta-fin-rot-desperate-for-help.461247/ But now my betta Itachi who I got in 2019 isn't doing so great. His tail has almost completely receded and is...

Hello! I got my betta fish, Galaxy, about a month and a half ago. I was wondering if anyone had tips for finding out his age, or from the crappy photos that I attach here. He's a Koi (halfmoon??)

I bought some small angels because I am fairly good at determining sex even very young. But anyways. I was wondering how big the angels need to be from nose to the start of the back fin (so abdomin, ex nickle size cause they are round) till they can start breeding.?

Hi, I've tried searching the forum but can't find the answer, I apologise if I've overlooked it. Can anyone tell me at what age to separate my guppy fry boys and girls? I'm planning on keeping any really nice ones, but most are going off to my LFS and I don't want the girls to all be knocked up...