i had a similar thing happen with a couple of neon tetras. they got really fat and died. when i took them out of the tank i gently poked the huge belly...a ton of eggs came out...WAY more than should have. so im thinking the eggs got blocked and continued to accumulate or something.
obviously that isnt your problem if the rasbora is a male.lol
obviously that isnt your problem if the rasbora is a male.lol
