When ever i do a water change during the change, my pleco goes nuts.... He just swims around really fast and dives into the gravel and just plows in it for a good 4sec... Any idea?
Yeah they do dig somewhat, ususally to get under something. Do you have any cave/retreats in the tank? Basically it is trying to hide as you are a predator. Either that or it's flipping out because a difference in water temp/quality.
