For 10 to 30 gallon tanks
In Tank Protein Skimmers
The AquaticLife Internal Mini Protein Skimmer 115 is a perfect choice for nano reef aquariums. The adjustable mounting bracket fits standard aquarium frames. The quick-lock design makes it easy to open skimmer housing for cleaning.

For 10 to 50 gallon tanks
In Tank Protein Skimmers
Fiji Cube Nano DC Protein Skimmers are an excellent choice of nano skimmer that offers great skimming capability. The skimmer has a compact footprint which is designed to fit most all-in-one aquariums.

For 5 to 45 gallon tanks
Hang on & Sump Protein Skimmers
The Fluval Sea PS2 Mini Protein Skimmer is a hang-on protein skimmer for tanks up to 20 gallons. The Fluval Sea PS1 is a in tank or in sump skimmer for saltwater aquariums up to 45 gallons.

For 40 to 650 gallon tanks
The IceCap K1 and K3 Protein Skimmers are remarkably compact skimmers that offer a new level of refined filtration for marine aquariums. The different skimmers can handle tanks ranging from 40 to 650 gallons. All aspects of the skimmer were implemented to surpass many challenges other skimmer on the market miss out on.

For 100 to 265 gallon tanks
In Sump Protein Skimmers
The Maxspect Jump Protein Skimmers are innovative and attractive. With feature loaded DC pumps, patented dual needle wheel impellers, easy flow control and a design that makes maintenance easy, they are truly game changing skimmers.

For 20 to 320 gallon tanks
Hang On & In Sump Protein Skimmers
A wide variety of protein skimmers for a wide variety of tank sizes and protein skimmer needs.

Reef Octopus offers a number of products that will increase the efficiency of your protein skimmer.

For 60 to 800 gallon tanks
In Sump Protein Skimmers
The Simplicity Skimmers use a controllable DC pump with a needle wheel; regarded as one of the best methods to shred air and water to create micro fine bubbles. These skimmers provide one of the keys to a successful protein skimming—a long contact time between water and air. The bubble plate, wedge pipe indicator, air intake adjustment and controllable pump allow you to achieve the best performance for your unique system.

For 5 to 265 gallon tanks
In Tank & In Sump Protein Skimmers
The Tunze Protein Skimmers come in a wide variety of styles. The Tunze Comline DOC Skimmers come with AC pumps. The Tunze DOC Skimmers come with controllers and DC pumps. The smaller sizes are designed to fit inside an aquarium (ideally a back compartment), and the bigger ones are in sump skimmers.