First Time I caught my pleco

[trout_pout]

I've never seen him do it before, he went up and did like a twirl at the top and came back down. I have never seen a pleco go that high up before, it was crazy!

 

[Mr Miagi]

It could be a bad sign u know! Not to rain on your party!

Have you checked your water params of late?

 

[trout_pout]

It could be a bad sign u know! Not to rain on your party!

Have you checked your water params of late?

don't say such things

 

[morgan]

Absolutely normal! They would do it if there was a problem with water quality but they do it anyway. I know this is correct because I asked the same question about my pleco and that was the answer I got from several people.

 

[Def]

They also do it if they're sick. I had a plec die of velvet, he hung up at the surface a lot to get some oxygen.

 

[SirMinion]

All plecs are from fast moving, highly oxygenated waters, so they do require a lot more oxygen in the water than many other fish.

Oxygen levels that are no cause for conern in other fish will cause a pleco to surface to breath.
If your plec does this a lot, it might be prudent to get an airstone in there.

On the other hand, plecs do somtimes surface as part of their normal behaviour too, so it's unlikely to be anything to worry about.