my sister brought one home from a friend who was mistreating it due to boredom. she loves animals and hates when they suffer. im noticing that the betta is on the surface on his side. he swims all lopsided and braces against fake plants to hold himself in the correct position. he doesnt swim to the bottom and struggles to stay off his side. he is fat but doesnt have dropsy. im thinking it is a swim bladder disorder but not sure if it is or what to do. i would post pictures but they would just show a fat blue betta hanging out a little to his side on top. any help/ advice is appreciated.