i like my clown plecos they only get about 6 inches and work great in a small tank and i just move the one pleco from tank to tank whenever it needs the glass clean. i have been moving him around for 3 years now and have had no probloms. i will never go back to the common pleco they outgrow the tank fast even my 75 gal tank he was huge and needed to be feed all the time to leave my fish alone now he is in my friends 110 gal tank with 3 oscars no more picking on fish for him.