Betta only using one fin?
Hi, sorry for having what seems like a new question every day. I feel like I am always making new threads here :/
Anyway today I found my Betta was only using one of his pectoral fins to swim while the other was clamped to his side. He occasionally uses the clamped one, but it's uncommon. When he does use the other fin, the two fins aren't in sync when swimming.
He just got moved to a 5g tank, so I'm wondering if he injured himself on something or in the process?
He's eating and acting fine. I was wondering if I should add some aquarium salt in case it's an injury? I don't think it's fin rot, but the hurt fin looks like it might be a little shorter than the healthy one.