Hello my beta fish become bigger and 2 days ago she stop interesting in food .yesterday she was staying on bottom under plants and today she’s on top .she’s moving after the time .water is fine I just clean my tank and change water on Sunday .usually she’s waiting for food everyday now she’s stops. it happen after my beta male was moved to quarantine tank and died .he was stuck inside rock hole and damage his fin badly.so I just thinking it’s something can be wrong with my fish .Fin is fine .Belly not big so it’s not swim blender.