Aquarium Surface Skimmers for Fish Tanks

Choosing the right skimmer largely comes down to matching its flow rate to the size of your tank, as one that's too weak will leave debris circling the surface rather than pulling it away, while an oversized unit can create unwanted turbulence for slower swimmers. If you're not sure how much water you're working with, our fish tank volume calculator makes it easy to work out your tank's exact volume before choosing a model. Beyond keeping the water surface clear, a well-matched skimmer also helps prevent the greasy film that can otherwise dull your lighting and make the tank look neglected, keeping your aquarium looking its best with very little ongoing effort.