IceCap K3-250 HOB Protein Skimmer – Hang-On-Back Skimmer for Aquariums up to 250 Gallons (No Sump Required)
$389.99
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Large U.S. shipping: $69.99. This item does not qualify for standard free shipping.
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Large shipping: $69.99. The standard $100 free-shipping offer does not apply.
Most in-stock orders process in 1–3 business days. Estimated standard transit is 5–12 business days after dispatch. Backorders, preorders, and special orders follow their stated lead times. Dates are estimates, and separate shipments may have separate charges.
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High Performance Filtration No Sump Required
The IceCap K3-250 HOB Protein Skimmer delivers powerful, efficient waste removal for aquariums without a sump. Designed for systems up to 250 gallons, this hang-on-back skimmer provides serious filtration performance while keeping your display clean and uncluttered.
Perfect for reef hobbyists who want advanced filtration without the complexity of a sump system
What a Protein Skimmer Does
- Removes dissolved organic waste before it breaks down
- Helps reduce nitrates and phosphates
- Improves water clarity
- Supports healthier fish and coral
One of the most effective upgrades for maintaining stable water quality
Built for Performance & Simplicity
The K3-250 features a turbulence reducing cylindrical body that stabilizes the air and water mixture for more efficient foam production.
✔ Hang on back design (no sump needed)
✔ External pump reduces heat transfer to tank
✔ Compact yet powerful footprint
✔ Easy installation and maintenance
Quiet Operation & Efficient Skimming
Powered by the IceCap DCAIR 2.5 pinwheel pump, this skimmer delivers strong air intake with quiet, consistent performance.
- External pump design for improved efficiency
- Smooth, stable foam production
- Built for long-term reliability
Bioload Capacity
- Light Bioload: up to 250 gallons
- Medium Bioload: up to 200 gallons
- Heavy Bioload: up to 140 gallons
Matching your bioload ensures optimal skimmer performance
Technical Specifications
- Body Size: 5 inches
- Footprint: 11" x 5.6"
- Height: 23.3"
- Max Mount Width: ~1.5"
- Installation: Hang-On-Back (HOB)
Pump Information
- Pump: IceCap DCAIR 2.5 Pinwheel
- Power Consumption: 16W
- Air Draw: ~900 LPH / 31.5 SCFH
- Water Flow: ~317 GPH
Perfect For
- Aquariums without a sump
- Medium to large reef tanks
- Hobbyists upgrading from basic filtration
- Systems needing stronger waste removal
Perfect Pairings
Build a complete filtration system:
Take your water quality to the next level
Important Notes
- Designed for rimless or compatible tank rims
- Requires adequate clearance behind aquarium
- Performance depends on proper setup and tuning
Why Shop with Infinity & Beyond Aquatics?
At Infinity & Beyond Aquatics, we're more than an online aquarium store—we're hobbyists who understand the importance of quality equipment and dependable service. Every product we offer is carefully selected from trusted manufacturers to help you build and maintain a thriving aquarium with confidence.
When you shop with us, you'll enjoy:
- Authorized Dealer for Premium Aquarium Brands
- Genuine Products Backed by Manufacturer Warranties
- Carefully Curated Selection for Freshwater & Saltwater Aquariums
- Fast Order Processing
- Responsive Customer Support from Fellow Aquarists
- Secure Checkout & Trusted Shipping Partners
- Whether you're just getting started or maintaining an advanced aquarium, we're committed to providing the products and support you need for long-term success.