I think i have a sick fish :-(
 

Hi All - i'm having an issue i with one of my black little shark catfish. All he seems to do i s sit on the wood and not move, also wedges himself in the corner of the tank in between the filer and the glass. He says there for hours and doesn't seems to be eating. Does anyone have any suggestiong??

These fish are very territorial (particularly fond of caves) and very shy their first year. Is this maybe the only place he has to hide?

Rainbow shark ;)