Thanks for the comments ,trying to get a pic of my unknown plec but it's a crafty sod and always sucking on slate or inside my bogwood on the left or the otherside of the tree root, I just look for the poo- talk about 1fish poo factory! .
Oh sorry tizer no strange plastic spongebob houses will ever make it into my tank let alone through my front door!, held in the same regard as ' no fishing' signs but hey that's just me.