Strange Fish Behavior

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How long did you have the pleco BEFORE he busted the weird move and what does his diet consist of?
 
My pleco did that when he had an itch. Turns out he had a skin infection of some kind.
 
I have had the pleco for a couple months now. So it was a wierd thing. Since then he seems to be acting normal but I am watching him a lot closer.
 
Maybe your pleco is just a weirdo like some loaches are. It's an uneasy feeling to suddenly see a loach laying on its side all pale & dead looking only to find out that it's common for them to relax in that manner. I can't say that it's common behavior for a pleco to do what yours did though. Raph has a good point. Check your fish all over really close up. He might have the beginnings of some good ol' fashioned ick. If so, it won't be very long from now until it becomes blaringly noticeable, but best to detect it early so you can treat it early.
 
i dont kno why that could happen but mine will swim upside down at the top of my tank
for over 5 minutes
 
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