Reef Octopus VarioS-4 Controllable DC Pump (1050 GPH) fit check
Reef Octopus VarioS-4 Controllable DC Pump (1050 GPH) is a DC return pump rated 1,050 GPH at zero head with 11 ft maximum head, drawing 35W. If plumbing cuts flow roughly in half, it delivers about 525 GPH, a 5-10x turnover for roughly 55-105 gallon systems.
Reef Octopus VarioS-4 Controllable DC Pump (1050 GPH): fits roughly 55-90 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you…
Who it is for
Good fit for
- ✓ 55-90 gallon systems, per the catalog fit range.
- ✓ Roughly 55-105 gallon systems at 5-10x turnover after typical head loss.
Not a fit for
- ✕ Tanks under about 55 gallons; it is sized above them.
- ✕ Systems over about 90 gallons without adding capacity elsewhere.
- ✕ Plumbing runs approaching 11 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.
Professional fit context
- Check flow chart, head pressure, controllability, plumbing size, and quiet-mode range.
- Reef Octopus VarioS-4 Controllable DC Pump (1050 GPH) fits roughly 55-90 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Sicce Syncra SDC 9.0 WiFi Controllable Pump (1000-2500 GPH)
1,000 GPH vs 1,050: less flow for smaller systems.
- Sicce Syncra Silent 4.0 Pump (951 GPH)
951 GPH vs 1,050: less flow for smaller systems.
- Jebao DCP-5000 Sine Wave Return Pump
1,320 GPH vs 1,050: more flow.
Full spec snapshot
- Category
- Return Pumps
- Build tier
- Balanced
- Estimated price
- $329
- Tank fit range
- fits roughly 55-90 gallon systems
- Format
- DC Return Pump
- Maximum flow
- 1,050 GPH
Related reading
Questions
How much flow does the Reef Octopus VarioS-4 Controllable DC Pump (1050 GPH) deliver after head loss?
It is rated 1,050 GPH at zero head and stops near 11 ft. With roughly half lost to plumbing, plan on about 525 GPH delivered, which ReefCrafter treats as enough for 55-105 gallon systems (a 105-gallon system wants 525-1,050 GPH delivered).
What tank size is the Reef Octopus VarioS-4 Controllable DC Pump (1050 GPH) for?
ReefCrafter's catalog fit range for it is 55-90 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-4 Controllable DC Pump (1050 GPH) against?
Sicce Syncra SDC 9.0 WiFi Controllable Pump (1000-2500 GPH) (1,000 GPH vs 1,050: less flow for smaller systems); Sicce Syncra Silent 4.0 Pump (951 GPH) (951 GPH vs 1,050: less flow for smaller systems); Jebao DCP-5000 Sine Wave Return Pump (1,320 GPH vs 1,050: more flow).
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