A skimmer producing wetter, less concentrated skimmate isn't necessarily undersized — sometimes it just needs more dwell time, which is exactly what a neck extension adds. Reef Octopus Neck Extensions come in a full range of sizes matched to specific skimmer necks.
Why Extending the Neck Helps
A taller neck gives foam more time and distance to rise and break down before reaching the collection cup, which typically produces drier, darker, more concentrated skimmate — a simple mechanical upgrade that doesn't require any change to the pump or reaction chamber.
Choosing the Right Extension
Neck Extensions are sized to match specific skimmer necks: standard black acrylic extensions in 110, 150, 160, 170, 200, 250, and 300 sizes for most Reef Octopus skimmers; white PVC "Twist & Lock" style extensions (150-TL, 200-TL) for Elite and Prime series skimmers; and purpose-fit extensions for the SRO 6000INT/SSS, SRO XP8000, and SRO 7000–9000EXT models.
Setup Tips
- Match the extension size to your skimmer's neck size exactly — check your model's specs before ordering.
- Add incrementally and observe skimmate consistency before stacking multiple extensions.
- Watch for overflow after adding an extension, since a taller neck changes water level dynamics inside the chamber.
Reef Octopus Neck Extensions are available at Marine Concept Supply across all sizes — order online or pick up at our shop in Wheeling, IL. Shop 110, 150, 160, 170, 200, 250, 300, 150-TL, 200-TL, SRO 6000INT/SSS, XP8000, or 7000–8000EXT, and browse more protein skimmer accessories.
