I love your aquarium and pleco. I have a pleco to she eats driftwood. I think she is running out of driftwood though. When she was little she would eat a hole and live in the path of eaten wood and try to hide in it. Now she seems to camouflaged her self with the wood. I know she is on it if the wood is heavy. So I am carful now that I know. Hopefully the new wood will last longer then the last one.