Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH) fit check
Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH) is a DC return pump rated 2,700 GPH at zero head with 16 ft maximum head, drawing 105W. If plumbing cuts flow roughly in half, it delivers about 1,350 GPH, a 5-10x turnover for roughly 135-270 gallon systems.
Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH): fits roughly 120-300 gallon systems. Specs, compatibility math, sizing risks, and alternatives before…

Who it is for
Good fit for
- ✓ 120-300 gallon systems, per the catalog fit range.
- ✓ Roughly 135-270 gallon systems at 5-10x turnover after typical head loss.
Not a fit for
- ✕ Tanks under about 120 gallons; it is sized above them.
- ✕ Systems over about 300 gallons without adding capacity elsewhere.
- ✕ Plumbing runs approaching 16 ft of head, where flow drops toward zero.
Listed features
- controller and float switch included
- Apex compatible
Compatibility math
Head-loss margin
Example: A 95g system usually wants about 950-1,900 rated GPH if plumbing cuts flow roughly in half.
Return pumps are judged by delivered flow, not only the zero-head box rating.
Risk notes
- Box-rating GPH is measured at zero head. Real stands, elbows, valves, and plumbing cut that number down.
- Price is marked as estimated, so verify current vendor pricing before treating the budget as final.
Professional fit context
- Check flow chart, head pressure, controllability, plumbing size, and quiet-mode range.
- Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH) fits roughly 120-300 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
- Treat the displayed price as a budget placeholder until a reviewed vendor page confirms current pricing.
Alternatives to compare
- Jebao DCP-10000 Sine Wave Return Pump
2,640 GPH vs 2,700: less flow for smaller systems.
- EcoTech Marine Vectra L2 Mobius DC Return Pump (3100 GPH)
3,100 GPH vs 2,700: more flow.
- EcoTech Marine Vectra L1 DC Return Pump (3100 GPH)
3,100 GPH vs 2,700: more flow.
Full spec snapshot
- Category
- Return Pumps
- Build tier
- Premium
- Estimated price
- $549 est.
- Tank fit range
- fits roughly 120-300 gallon systems
- Format
- DC Return Pump
- Maximum flow
- 2,700 GPH
Related reading
Questions
How much flow does the Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH) deliver after head loss?
It is rated 2,700 GPH at zero head and stops near 16 ft. With roughly half lost to plumbing, plan on about 1,350 GPH delivered, which ReefCrafter treats as enough for 135-270 gallon systems (a 270-gallon system wants 1,350-2,700 GPH delivered).
What tank size is the Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH) for?
ReefCrafter's catalog fit range for it is 120-300 gallon systems. Confirm that against your final display volume, sump volume, and livestock plan rather than the box label alone.
What should I compare the Reef Octopus VarioS-8 Controllable DC Pump (2700 GPH) against?
Jebao DCP-10000 Sine Wave Return Pump (2,640 GPH vs 2,700: less flow for smaller systems); EcoTech Marine Vectra L2 Mobius DC Return Pump (3100 GPH) (3,100 GPH vs 2,700: more flow); EcoTech Marine Vectra L1 DC Return Pump (3100 GPH) (3,100 GPH vs 2,700: more flow).
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