Sicce Syncra Silent 2.0 Pump (568 GPH) fit check
Sicce Syncra Silent 2.0 Pump (568 GPH) is an AC return pump rated 568 GPH at zero head with 6.5 ft maximum head, drawing 35W. If plumbing cuts flow roughly in half, it delivers about 284 GPH, a 5-10x turnover for roughly 30-55 gallon systems.
Sicce Syncra Silent 2.0 Pump (568 GPH): fits roughly 30-75 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.

Who it is for
Good fit for
- ✓ 30-75 gallon systems, per the catalog fit range.
- ✓ Roughly 30-55 gallon systems at 5-10x turnover after typical head loss.
Not a fit for
- ✕ Tanks under about 30 gallons; it is sized above them.
- ✕ Systems over about 75 gallons without adding capacity elsewhere.
- ✕ Plumbing runs approaching 6.5 ft of head, where flow drops toward zero.
Listed features
- submersible or external inline use; never run without water
- ceramic shaft
- 5-year warranty
Specs checked against us.sicce.com.
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.
- Sicce Syncra Silent 2.0 Pump (568 GPH) fits roughly 30-75 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Sicce Syncra SDC 6.0 WiFi Controllable Pump (530-1450 GPH)
530 GPH vs 568: less flow for smaller systems.
- Sicce Syncra Silent 3.0 Pump (714 GPH)
714 GPH vs 568: more flow.
- Reef Octopus VarioS-2 Controllable DC Pump (792 GPH)
792 GPH vs 568: more flow.
Full spec snapshot
- Category
- Return Pumps
- Build tier
- Budget
- Estimated price
- $129
- Tank fit range
- fits roughly 30-75 gallon systems
- Format
- AC Return Pump
- Maximum flow
- 568 GPH
Related reading
Questions
How much flow does the Sicce Syncra Silent 2.0 Pump (568 GPH) deliver after head loss?
It is rated 568 GPH at zero head and stops near 6.5 ft. With roughly half lost to plumbing, plan on about 284 GPH delivered, which ReefCrafter treats as enough for 30-55 gallon systems (a 55-gallon system wants 275-550 GPH delivered).
What tank size is the Sicce Syncra Silent 2.0 Pump (568 GPH) for?
ReefCrafter's catalog fit range for it is 30-75 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 Sicce Syncra Silent 2.0 Pump (568 GPH) against?
Sicce Syncra SDC 6.0 WiFi Controllable Pump (530-1450 GPH) (530 GPH vs 568: less flow for smaller systems); Sicce Syncra Silent 3.0 Pump (714 GPH) (714 GPH vs 568: more flow); Reef Octopus VarioS-2 Controllable DC Pump (792 GPH) (792 GPH vs 568: more flow).
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