I was just curious since I have always heard of them being used on much larger tanks.
yeah just my opinion really. i tend to go for high flow and filtration in my tanks. i run 2 ac110s on one of my 75s with a single red devil occupying. sometimes i have to up and leave home for work for a week at a time on short notice. so in my mind, the filtration overkill is insurance if i miss a water change.