Maximize your aquarium's clarity and health with the Red Sea REEFER™ Skimmer series. Engineered with a "REEF-SPEC" philosophy, these skimmers provide superior waste removal by optimizing air-water contact time. Whether you choose the high-efficiency AC series or the smart, self-leveling DC series, these units are designed to keep your ORP (Redox) levels high and your maintenance low.
Available in three sizes—300, 600, and 900—the REEFER™ series is built to fit perfectly into the skimmer chambers of Red Sea Reefer systems but is equally at home in any high-end custom sump setup.
FoamView™ Window: A built-in window in the collection cup allows you to easily monitor foam height and adjust for "wet" or "dry" skimming without removing the lid.
Integrated Manual Neck Cleaner: Simply rotate the handle on the lid to wipe away protein buildup from the skimmer neck, maintaining peak efficiency between deep cleanings.
Whisper-Quiet Operation: Vibration-dampening rubber connectors and a high-flow air silencer ensure that the skimmer doesn't disturb the peace of your living room.
Precision Geared Valve: Fine-tune your water level with a geared adjustment knob that offers positive, reliable flow regulation.
Flexible Setup: The pump inlet and regulation valve can be assembled in three different orientations to accommodate tight or uniquely shaped sump compartments.
Extra-Long Waste Tube: Includes a 1-meter valved drainage hose, making it easy to drain the collection cup into a separate container.
REEFER™ Skimmer 300
Air Flow: 500 LPH (130 GPH)
Water Flow: 1000 LPH (265 GPH)
Height: 53 cm (21”)
Footprint: 23 x 21 cm or 25 x 18 cm
Recommended Tank Size: SPS: 300L | Mixed Reef: 600L | Fish Only: 900L
REEFER™ Skimmer 600
Air Flow: 750 LPH (200 GPH)
Water Flow: 1500 LPH (400 GPH)
Height: 56 cm (22”)
Footprint: 26 x 24 cm or 29 x 21 cm
Recommended Tank Size: SPS: 600L | Mixed Reef: 1200L | Fish Only: 1800L
REEFER™ Skimmer 900
Air Flow: 900 LPH (235 GPH)
Water Flow: 2000 LPH (530 GPH)
Height: 59 cm (23”)
Footprint: 32 x 24 cm or 35 x 21 cm
Recommended Tank Size: SPS: 900L | Mixed Reef: 1800L | Fish Only: 2700L
Q: What is the difference between the AC and DC models? A: The AC models use reliable Sicce PSK pumps. The DC models (Reefer DC Skimmers) feature a smart DC pump that connects to the ReefBeat App, offering self-leveling technology that prevents the cup from overflowing and sends notifications to your phone if the pump is blocked.
Q: How do I handle the "break-in" period of a new skimmer? A: New skimmers often produce microbubbles or over-skim for the first 48–72 hours due to manufacturing residues. We recommend running the skimmer with the cup drain open for the first two days or cleaning it thoroughly with warm water before installation.
Q: Why is my skimmer cup overflowing suddenly? A: This is usually caused by changes in water surface tension. Common triggers include using epoxy/coral glue, feeding fatty foods, or dosing certain water conditioners. Turn the skimmer off for an hour after feeding or using glue to prevent overflows.
Q: What is the ideal water depth for the REEFER™ Skimmer? A: For the best performance, maintain a constant water level in your sump.
RSK 300: 16–20 cm (6–8”)
RSK 600: 18–20 cm (7–8”)
RSK 900: 20–24 cm (8–9.5”)
