Update. Day 4 in his new house and it might just be me but this is the laziest fish i have ever come across. He just floats, he's a major floater. He has the occasional burst of energy and then goes back to floating. I suspect betta depression and loneliness, so i gave him dog.
Apparently Igor and dog had a lot to talk about this morning, he looked almost like he was begging for food.
That's another thing, when he first came he was eating like a champ but now he's spitting pellets out. I crushed one up this morning thinking they might be too big and he did have some but not a lot.
Is his lack of energy just new home anxiety? or is he just resting and conserving energy because he's recovering? He's not clamping his fins and i can't see any other signs of illness. It also can't be water quality because in 4 days he's already had 2 wcs.
^^ you can see the extent of the gimpy tail fin and wonky back. Maybe that's why he likes to float because swimming is hard work. He has zero interest in flaring although did want to snuggle with the mirror when i put it up next to the tank.