This is the one I've been looking at. The price is low but has a lot of good reviews.

https://www.amazon.com/Laguna-PT495-Skimmer-Filter/dp/B004KZEN9K/ref=sr_1_5?ie=UTF8&qid=1473010330&sr=8-5&keywords=pond+skimmer#customerReviews

Anyone have experience with this one?