So, I just moved all three of my bettas into my divided 10gal two days ago. Seaking (male) on one side, Corsola (female) in the middle, and Gyarados (male) on the other side. Tank is cycled and I've been monitoring the ammonia and nitrates. Everything in terms of levels and temperatures have been fine.
I came home tonight from being out of the house all day to find Seaking's tail shredded!!
I'm kind of baffled!
Is it tearing?
In his side of the tank there's one silk plant, one plastic plant (tested safe), a coconut moss cave from PetCo, 2 marimo balls and a PVC pipe tunnel. Could he somehow have teared up his tail? Gyarados has the same set-up on his side, but he's fine.
Could it be tail biting from being moved from his original tank?
That'd be strange because his original tank was a 1.25gal (which for a month he shared divided space with Gyarados), and now in this new tank he has 3.3gal of space... give or take substrate space.
Could it be stress from being next to my female?
He and Gyarados can see her where the plastic mesh meets the glass and a little bit through the mesh... and both have been making bubble nests like crazy, but Seaking's have been HUGE. Is he sexually frustrated???
Gyarados hasn't been biting his tail though!
He's not near the filter intake at all (it's in the middle with the female).
Some help? I don't have any good BEFORE pictures of Seaking besides the one in my avatar which I took in May... but here are pictures from tonight.
So upset... he's got the biggest fins of my bettas and he goes and gets them all torn/bitten off. What should I do? Should I move him back into his 1.25gal?