Boesemanis rubbing side of head?

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lighty

Aquarium Advice Apprentice
Joined
Feb 10, 2014
Messages
19
Hi,
3 of my Boesemanis appear to be rubbing their sides just behind their mouth on my driftwood. I cant quite see if it is their gills but it is not the actual mouth they are rubbing. They turn slightly on to their sides to hit the right spot. They will also occasionally quiver and then zoom about like they have an itch. They are still eating but one of them isn't bothered to swim about as much as the rest.

There are no abnormalities physically when looking at them. The tank parameters are all normal and healthy. None of my other fish appear to be acting different. I have done water changes without a change.

What should I do...? (I have never had sick fish or used meds previously)

Thanks.
 
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