scotty said:please don't buy these fish,as they become more aggressive as the get older and in some cases might attach themselves to you other fish and cause damageI've had great success with plenty of sucking loach.
They love the algae so get plenty of them.
My tank was spotless with them in and i never had to clean it once, they even kept all the ornaments spotless too!
Also you might end up with fish with no eyes, not nice.