Strong skimming and a small sump footprint don't usually go together, but the eSsence S-130 is built specifically to deliver both. The Reef Octopus eSsence S-130 Protein Skimmer is a compact in-sump design for hobbyists who want real performance without dedicating much sump space to get it.
Why Compact Doesn't Mean Weak
Skimmer performance comes down to reaction chamber design and contact time, not just overall size — the eSsence S-130 is engineered to pack effective skimming into a smaller footprint rather than simply scaling everything down and losing performance in the process.
Who It's For
- Sumps with limited compartment space that still need dependable, everyday protein skimming.
- Keepers prioritizing efficiency — the eSsence line is built with energy-efficient operation and quiet running in mind.
- Mid-size reef tanks that don't need the largest chamber in the Reef Octopus lineup.
Setup Tips
- Break in gradually — expect some microbubble overflow for the first week or two as the skimmer seasons.
- Check sump water level requirements before installing, since in-sump skimmers depend on consistent water depth to perform correctly.
- Empty the collection cup regularly to avoid skimmate draining back into the sump.
The Reef Octopus eSsence S-130 Protein Skimmer is available at Marine Concept Supply — order online or pick up at our shop in Wheeling, IL. Shop the eSsence S-130, and browse more protein skimmers.
