Hydor Koralia 3rd Generation 1950 GPH Powerhead fit check
Hydor Koralia 3rd Generation 1950 GPH Powerhead is an AC powerhead rated 1950 GPH. On its own it supplies comfortable flow for about 100 gallons of soft coral, 65 gallons of mixed reef, or 40 gallons of SPS, before placement and mode settings.
Hydor Koralia 3rd Generation 1950 GPH Powerhead: fits roughly 75-150 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.
Who it is for
Good fit for
- ✓ 75-150 gallon systems, per the catalog fit range.
- ✓ About 65 gallons of mixed reef or 100 gallons of soft coral on its own.
Not a fit for
- ✕ Tanks under about 75 gallons; it is sized above them.
- ✕ Systems over about 150 gallons without adding capacity elsewhere.
- ✕ SPS tanks over about 40 gallons unless paired with more flow.
Listed features
- AC
- non-controllable
- magnet mount
Compatibility math
Turnover contribution
Example: 1,950 GPH contributes about 26x 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.
- Hydor Koralia 3rd Generation 1950 GPH Powerhead fits roughly 75-150 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- AquaIllumination Nero 3 Wave Powerhead (2000 GPH)
2,000 GPH vs 1,950: more flow.
- IceCap 2K Gyre Flow Pump (2000 GPH)
2,000 GPH vs 1,950: more flow.
- IceCap 2K Gyre Flow Pump with WaveEngine LE Controller
2,000 GPH vs 1,950: more flow.
Livestock this affects
- Pocillopora coral
High flow need; plan strong, varied flow.
- Red montipora capricornis
High flow need; plan strong, varied flow.
- Harlequin shrimp
Low flow need; keep this pump's output indirect nearby.
- Mushroom coral
Low flow need; keep this pump's output indirect nearby.
Full spec snapshot
- Category
- Flow Pumps
- Build tier
- Budget
- Estimated price
- $80
- Tank fit range
- fits roughly 75-150 gallon systems
- Format
- AC Powerhead
- Maximum flow
- 1,950 GPH
Related reading
Questions
How many Hydor Koralia 3rd Generation 1950 GPH Powerhead 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 1,950 GPH rated, that is about 2 of these at full output, before return-pump flow and mode settings.
What tank size is the Hydor Koralia 3rd Generation 1950 GPH Powerhead for?
ReefCrafter's catalog fit range for it is 75-150 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 Hydor Koralia 3rd Generation 1950 GPH Powerhead against?
AquaIllumination Nero 3 Wave Powerhead (2000 GPH) (2,000 GPH vs 1,950: more flow); IceCap 2K Gyre Flow Pump (2000 GPH) (2,000 GPH vs 1,950: more flow); IceCap 2K Gyre Flow Pump with WaveEngine LE Controller (2,000 GPH vs 1,950: more flow).
