can fish throw up?

[laurabb]

Sometimes when a betta is fed a poor diet... or has been starved, they will poop a thin white line of fecal matter. It could be that or it could be a parasite. Was it alive? Was there anything unusual about one end or the other? I'd have to see a picture of what you're describing... the threads and the spit-up from your betta. It's so diffcult to determine what it is... : /

I don't think the white stringy thing was alive. It just seemed to be floating around in the water, and now I don't see it (must be on the bottom of the tank, hidden in the marbles). Each end looked pretty much the same; I didn't see anything that looked particularly like a head or anything. I do see a small brown thing at the bottom of his tank, which I'm hoping is a poo, and not a piece of uneaten food. Is there any harm in treating with Jungle Parasite Clear, or is this jumping the gun?

 

[Signus]

That'd be jumping the gun. Paracites will make their presense known. Most fish poo is stringy.

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Ps. My "fish throwing up" experiences are from the docks and piers (about 6-30 ft of water), but yes, you're totally right about fish and pressure changes. Always felt bad about popping the airbladders on unsized groupers, then releasing them to an uncertain fate.