Who Gives A Fish Forums

Thanks for the helpful advice, I'm actually considering fragging my own Duncan now.

I've been trying to help my girlfriend with her 20 gallon saltwater tank, but I'm a freshwater guy myself, so I'm pretty clueless. In my experience with freshwater tanks, I've used plecos or otos to help with algae control. What are some good options for a saltwater tank though?

She's got a ...