Pleco Anus Contractions: Constipation??

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blyatboy

Feeder Fish
MFK Member
Oct 20, 2025
10
1
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36
Hong Kong
Hello. My plec (a roughly 8 year old stunted L001 rescue) refused food tonight.

I checked from the side and he looks a little more bloated than usual:

IMG_0115.jpeg

Managed to get a good look at his anus and looks like there are some visible contractions going on:


At one point, a short poop shot out pretty quickly (I didn’t get this on video).

He was eating and doing just fine yesterday (had a small piece of blanched zucchini).

I did a 50% water change earlier today, nitrates are around 10 PPM and nitrite/ammonia are at 0.
I plan to do an Epsom salt bath and fast him.

Does this look like constipation to you guys? Or something more serious? Any ideas?
 
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