Skip to content

OCTO Regal 250-INT Protein Skimmer

Sale price$993.29

OCTO Regal 250-INT — Choose performance that fits your reef

A hybrid-conical in-sump skimmer with variable-speed VarioS control and a collection-cup float switch.

François Neo’s recommendation

A protein skimmer should match your aquarium’s population, feeding routine and actual water volume. I look at air intake in relation to the system, rather than choosing a larger body by default. Compare the specifications below with your sump space and your intended livestock before selecting this model.

Technical specifications

Model Regal 250-INT
Pump VarioS 6-S
Maximum listed air intake 2400 L/h
Listed power 70 W
Footprint 420 × 280 mm (16.5 × 11.0 in)
Height 615 mm (24.2 in)
Manufacturer reference tank volume 2400 L / 634 US gal

Specifications follow OCTO’s linked international model page. The reference tank volume is not a heavy-stocking guarantee. Regional specifications and load-based ratings may differ; confirm the supplied US version before ordering.

Plan for installation and service

For in-sump installation. Check the chamber dimensions and recommended operating depth, then allow extra clearance to lift out the collection cup and access the pump. The listed footprint and height do not include the extra room needed for maintenance.

Do not select solely from the maximum volume rating. Tell us your water volume, fish and coral plans, feeding routine and available sump space so we can discuss a suitable fit.

Explore and learn

Read François Neo’s guide to skimmer sizing · Compare protein skimmers · Explore OCTO · Ask about this model

Manufacturer specifications and documentation