If you’re running a serious reef tank or large marine display and you want top-tier filtration that doesn’t compromise on control or build-quality, the Regal 300INT is a standout. Built with high-quality cast acrylic and powered by the VarioS-6S controllable DC pump, this unit delivers superior foam fractionation, silent operation, and precision control. Top Shelf Aquatics+3Reef Octopus+3Reef Supplies Canada+3
Key features you'll appreciate:
Hybrid conical body stabilises organic-rich foam, improving removal efficiency. Reef Octopus+1
VarioS-6S pump (36 V DC) with full variable speed & 0-10 V input for third-party system control (like your Apex or custom automation). CoralVue+1
Oversized collection cup with drainage, safety float switch, and easy disassembly for maintenance. Reef Supplies Canada
Footprint and sizing: 18″ × 12.2″ footprint; 12″ body diameter; height 25.4″; output port 50 mm / 1.5″. Top Shelf Aquatics+1
Rated by real users for aquariums up to approx. 700 gallons under light load, ~500 gallons heavy load. indianaquarium.com+1
Usage & Setup Tips:
This is an in-sump skimmer — you’ll need adequate sump space and recommended water height ~7-8.5″. Premium Aquatics+1
Mount the skimmer such that the collection cup is easily accessible for quick cleaning intervals — this improves long-term performance and keeps noise down.
Use the VarioS controller to ramp up feed/pause modes when you’re feeding heavily or doing maintenance — that helps reduce foaming overflows.
Because the pump is DC and the unit supports system integration via 0-10V, you can tie it into your aquarium monitoring & automation setup (flow reduction during feeding / high load periods).
Regular maintenance: Empty collection cup, rinse the skimmer body internals, inspect the air silencer and gate valve monthly. A clean skimmer = better performance.
Specifications:
Rated Tank Volume: Up to ~700 US gallons (light load) indianaquarium.com
Body Diameter: 12″
Footprint: 18″ × 12.2″ AquaCave
Total Height: 25.4″ CoralVue+1
Output Port Size: 50 mm / 1.5″ Top Shelf Aquatics
Power: DC 36V, 35-70 Watts (depending on load) Reef Supplies Canada
Air Draw: 1,200-2,400 LPH / 42-84 SCFH (varies) Reef Supplies Canada
Construction: Cast acrylic skimmer body, hybrid cone foam fractionation chamber. Reef Octopus
Why Big Fish Aquarium recommends it:
When you’re dealing with larger tanks or higher bio-load displays, skip the generic skimmers and go with a unit built for performance. The Regal 300INT gives you robust construction, advanced pump technology, and integration potential for your automation systems. In short: it’s built to handle serious setups and lets you dial in your filtration rather than compromising.
If you’re running a serious reef tank or large marine display and you want top-tier filtration that doesn’t compromise on control or build-quality, the Regal 300INT is a standout. Built with high-quality cast acrylic and powered by the VarioS-6S controllable DC pump, this unit delivers superior foam fractionation, silent operation, and precision control. Top Shelf Aquatics+3Reef Octopus+3Reef Supplies Canada+3
Key features you'll appreciate:
Hybrid conical body stabilises organic-rich foam, improving removal efficiency. Reef Octopus+1
VarioS-6S pump (36 V DC) with full variable speed & 0-10 V input for third-party system control (like your Apex or custom automation). CoralVue+1
Oversized collection cup with drainage, safety float switch, and easy disassembly for maintenance. Reef Supplies Canada
Footprint and sizing: 18″ × 12.2″ footprint; 12″ body diameter; height 25.4″; output port 50 mm / 1.5″. Top Shelf Aquatics+1
Rated by real users for aquariums up to approx. 700 gallons under light load, ~500 gallons heavy load. indianaquarium.com+1
Usage & Setup Tips:
This is an in-sump skimmer — you’ll need adequate sump space and recommended water height ~7-8.5″. Premium Aquatics+1
Mount the skimmer such that the collection cup is easily accessible for quick cleaning intervals — this improves long-term performance and keeps noise down.
Use the VarioS controller to ramp up feed/pause modes when you’re feeding heavily or doing maintenance — that helps reduce foaming overflows.
Because the pump is DC and the unit supports system integration via 0-10V, you can tie it into your aquarium monitoring & automation setup (flow reduction during feeding / high load periods).
Regular maintenance: Empty collection cup, rinse the skimmer body internals, inspect the air silencer and gate valve monthly. A clean skimmer = better performance.
Specifications:
Rated Tank Volume: Up to ~700 US gallons (light load) indianaquarium.com
Body Diameter: 12″
Footprint: 18″ × 12.2″ AquaCave
Total Height: 25.4″ CoralVue+1
Output Port Size: 50 mm / 1.5″ Top Shelf Aquatics
Power: DC 36V, 35-70 Watts (depending on load) Reef Supplies Canada
Air Draw: 1,200-2,400 LPH / 42-84 SCFH (varies) Reef Supplies Canada
Construction: Cast acrylic skimmer body, hybrid cone foam fractionation chamber. Reef Octopus
Why Big Fish Aquarium recommends it:
When you’re dealing with larger tanks or higher bio-load displays, skip the generic skimmers and go with a unit built for performance. The Regal 300INT gives you robust construction, advanced pump technology, and integration potential for your automation systems. In short: it’s built to handle serious setups and lets you dial in your filtration rather than compromising.
