Reef Octopus Classic 90 HOB Protein Skimmer
Hang-on-back external mount protein skimmer with hybrid cone body.
Effectively removes dissolved organics from aquariums up to 130 gals.
Distinct design allows stable production of more waste-removing foam.
Features
| Specification | Removes dissolved organics from aquariums up to 130 gallons |
|---|---|
| Design | Hybrid cone body with bubble diffusing chamber |
| Installation | Hang-on-back external mount |
Combines the benefits of a conical in-sump skimmer with the installation ease of a hang-on unit. Bubble diffusing chamber and hybrid cone body stabilizes foam production to boost waste removal efficiency.
FAQ
What is the maximum aquarium size this skimmer is suitable for?
This skimmer is effective for aquariums up to 130 gallons.
Does the skimmer require a sump for installation?
No, it is a hang-on-back unit and does not require a sump.
How does the hybrid cone body improve performance?
The hybrid cone body stabilizes foam production, leading to more consistent and efficient removal of dissolved organics.



Victoria Ball –
The skimmer works well in my 120-gallon reef tank. Foam production is steady and the installation was simple. I noticed less organic buildup in the water after using it for a few weeks.
Wanda Dyer –
Good performance for a HOB skimmer. It handles the organic load in my tank well. The foam is consistent and doesn’t overflow. A bit noisy at startup, but otherwise reliable.
Cameron Paterson –
Installed it in my marine tank last month. The hybrid cone design gives stable foam, which helps keep water clarity high. Easy to clean and maintain.