That is why we like ours so much think they are the best cleaners going as soon as we put them in a new tank they get to work in our bare 150 they will have it clean in 2 days and that is 4 inch pleco. Want to get one for every tank but they are hard to find.
I can see that if you want a pleco collection tank but we first got them to eat algae and in that department 1 can keep a big tank clean. That is where I am surprized no one even mentions them for that and we think they are better than the bristle nose.