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- May 12, 2017
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Um hi everyone, i had a koi about 6 inches long out of nowhere go belly up. He is not dead though, but instead has a very hard time swimming and keeping itself bouyant. I figure it's something to do with the swim bladder. Any idea what could have done this OVERNIGHT? The fish was fine two days earlier and i was wondering what could have caused this. Ty for any information