Apologies if it's in the wrong thread, if so let me know where to post please. So I feed alot of my fish in separate tanks frozen shrimp from the grocery store. Everyone of them are fed pretty well. I feed every 2-3 days so I'm not over feeding. But the arowama that's housed with 2 Oscar's was fed last night he seemed fine, no signs of choking or anything of that nature. This afternoon he expels his stomach and sinks face down and dies. All the other fish are perfectly fine still swimming showing no signs of stress at all.