Small protein skimmers and nano-scale applications need a submerged feed pump sized to match — not a scaled-down version of a pump built for something bigger. The Sicce SK line covers exactly that end of the scale, in two capacities.
Why a Dedicated Small Skimmer Pump
A skimmer pump's job is generating the fine bubbles that drive protein skimming, and that job needs to be sized correctly to the reaction chamber it's feeding — an oversized pump on a small skimmer wastes potential and can flood the collection cup.
Choosing a Size
- SK 200 — ~53 GPH — a compact submersible skimmer pump rated at 200 L/h, sized for small protein skimmers or nano-scale applications.
- SK 400 — ~106 GPH — steps up flow from the SK 200, rated at 400 L/h for small to medium protein skimmers.
Setup Tips
- Match to your skimmer's rated pump requirements, not just tank size.
- Fully submersible design for direct installation inside the skimmer's pump well.
- Break in gradually after installation, expecting some microbubble overflow initially as the skimmer seasons.
The Sicce SK line is available at Marine Concept Supply in both sizes — order online or pick up at our shop in Wheeling, IL. Shop SK 200 or SK 400, and browse more protein skimmer pumps.

