IceCap K3-100INT Controllable In-Sump Protein Skimmer (IC-K3-100INT)
The IceCap K3-100INT Protein Skimmer (SKU: IC-K3-100INT) is an authentic, high-efficiency internal filtration system distributed by CoralVue to bring advanced, controllable organic nutrient export to space-restricted marine reef aquariums up to 80 gallons. While mechanical filters like socks or roller mats excel at catching floating detritus, dissolved proteins from organic wastes and uneaten foods remain trapped in the liquid column. Left to decay, these compounds break down directly into harmful nitrates and phosphates. The K3-100INT serves as your frontline defense, utilizing high-velocity air integration to physically bind, float, and remove these dissolved organics from your aquarium system entirely before they can trigger unwanted algae blooms.
Constructed from heavy-duty cell-cast acrylic and thick polymer components, the K3-100INT is optimized to overcome the placement challenges common in modern, multi-stage under-cabinet sumps. At its performance core is the efficient, low-voltage Controllable DCAIR 1.0 Pinwheel Pump. Unlike old-school AC pumps that run at a single loud speed, this DC driver allows you to throttle the motor velocity across 10 distinct power intervals via an external digital controller, giving you absolute authority over the air-to-water ratio inside the chamber. This high-performance motor pulls an impressive 500 liters per hour (500LPH) of air while sipping a mere 10 watts of power. Combined with a pipeless gear output valve that discharges water smoothly underneath the baseline to eliminate splashes, this skimmer delivers dead-silent operation while protecting your cabinet from humidity and salt spray.
Key Features
Active 10-Speed Flow Customization: Adjust pump power settings at the click of a button to quickly fine-tune your bubble height or stall the system for coral feeding windows.
Space-Saving Internal Form Factor: Minimizes the horizontal equipment footprint by housing the water pump entirely within the lower base framework of the skimmer body cavity.
Quiet Submerged Discharge: Internal gate configuration routes effluent water cleanly out of the lower base below the operating waterline, stopping trickling noises.
(Note: This retail box includes (1) K3-100INT skimmer assembly, (1) collection cup with lid, (1) controllable DCAIR 1.0 pump, (1) digital 10-speed controller, an air intake silencer, and a flexible collection cup drain tube).
IceCap K3 Internal Series Bioload Sizing Profiles
| Skimmer Model |
SKU Reference |
Heavy Bioload Limit |
Medium Bioload Limit |
Light Bioload Limit |
Chamber Body Size |
| IceCap K3-100INT |
IC-K3-100INT |
40 Gallons |
65 Gallons |
80 Gallons |
4.0 Inches |
| IceCap K3-130INT |
IC-K3-130INT |
80 Gallons |
110 Gallons |
140 Gallons |
5.0 Inches |
| IceCap K3-160INT |
IC-K3-160INT |
120 Gallons |
160 Gallons |
250 Gallons |
6.0 Inches |
| IceCap K3-200INT |
IC-K3-200INT |
150 Gallons |
220 Gallons |
300 Gallons |
8.0 Inches |