IceCap 4K Gyre Flow Pump (4000 GPH) fit check
IceCap 4K Gyre Flow Pump (4000 GPH) is a DC gyre flow pump rated 4000 GPH. On its own it supplies comfortable flow for about 200 gallons of soft coral, 135 gallons of mixed reef, or 80 gallons of SPS, before placement and mode settings.
IceCap 4K Gyre Flow Pump (4000 GPH): fits roughly 75-200 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.
Who it is for
Good fit for
- ✓ 75-200 gallon systems, per the catalog fit range.
- ✓ About 135 gallons of mixed reef or 200 gallons of soft coral on its own.
Not a fit for
- ✕ Tanks under about 75 gallons; it is sized above them.
- ✕ Systems over about 200 gallons without adding capacity elsewhere.
- ✕ SPS tanks over about 80 gallons unless paired with more flow.
Listed features
- gyre/sheet flow
- pump only
Compatibility math
Turnover contribution
Example: 4,000 GPH contributes about 53x turnover on a 75g tank before placement and mode settings.
The planner adds all flow pumps together and compares the total to the reef goal.
Risk notes
- Too little flow leaves dead spots. Too much direct flow can strip tissue from LPS and irritate soft corals.
Professional fit context
- Check controllability, broadness of flow, glass thickness, GPH range, and whether two smaller pumps beat one large one.
- IceCap 4K Gyre Flow Pump (4000 GPH) fits roughly 75-200 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- AquaIllumination Nero 7 Wave Powerhead (4000 GPH)
Same 4,000 GPH; compare format and features instead.
- IceCap 4K Gyre Flow Pump with WaveEngine LE Controller
Same 4,000 GPH; compare format and features instead.
- Maxspect Jump Gyre Flow Pump MJ-GF316 (4000 GPH)
Same 4,000 GPH; compare format and features instead.
Livestock this affects
- Birdsnest coral
High flow need; plan strong, varied flow.
- Montipora
High flow need; plan strong, varied flow.
- Blastomussa coral
Low flow need; keep this pump's output indirect nearby.
- Bubble coral
Low flow need; keep this pump's output indirect nearby.
Full spec snapshot
- Category
- Flow Pumps
- Build tier
- Balanced
- Estimated price
- $229
- Tank fit range
- fits roughly 75-200 gallon systems
- Format
- DC Gyre Flow Pump
- Maximum flow
- 4,000 GPH
Related reading
Questions
How many IceCap 4K Gyre Flow Pump (4000 GPH) pumps does a 75 gallon mixed reef need?
A 75 gallon mixed reef wants about 2,250 GPH of total flow by ReefCrafter's 20-40x rule. At 4,000 GPH rated, that is about 1 of these at full output, before return-pump flow and mode settings.
What tank size is the IceCap 4K Gyre Flow Pump (4000 GPH) for?
ReefCrafter's catalog fit range for it is 75-200 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 IceCap 4K Gyre Flow Pump (4000 GPH) against?
AquaIllumination Nero 7 Wave Powerhead (4000 GPH) (Same 4,000 GPH; compare format and features instead); IceCap 4K Gyre Flow Pump with WaveEngine LE Controller (Same 4,000 GPH; compare format and features instead); Maxspect Jump Gyre Flow Pump MJ-GF316 (4000 GPH) (Same 4,000 GPH; compare format and features instead).
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