Hydor Koralia 3rd Generation 1350 GPH Powerhead fit check
Hydor Koralia 3rd Generation 1350 GPH Powerhead is an AC powerhead rated 1350 GPH. On its own it supplies comfortable flow for about 70 gallons of soft coral, 45 gallons of mixed reef, or 25 gallons of SPS, before placement and mode settings.
Hydor Koralia 3rd Generation 1350 GPH Powerhead: fits roughly 40-90 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.

Who it is for
Good fit for
- ✓ 40-90 gallon systems, per the catalog fit range.
- ✓ About 45 gallons of mixed reef or 70 gallons of soft coral on its own.
Not a fit for
- ✕ Tanks under about 40 gallons; it is sized above them.
- ✕ Systems over about 90 gallons without adding capacity elsewhere.
- ✕ SPS tanks over about 25 gallons unless paired with more flow.
Listed features
- AC
- non-controllable
- magnet mount
- updated impeller
Compatibility math
Turnover contribution
Example: 1,350 GPH contributes about 18x 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 1350 GPH Powerhead fits roughly 40-90 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- EcoTech VorTech MP10wQD QuietDrive Propeller Pump
1,300 GPH vs 1,350: less flow for smaller systems.
- Sicce Voyager 1200 GPH Stream Pump
1,200 GPH vs 1,350: less flow for smaller systems.
- Reef Octopus Octo Pulse 2 Wave Pump
1,600 GPH vs 1,350: more flow.
Livestock this affects
- Montipora digitata
High flow need; plan strong, varied flow.
- Pocillopora coral
High flow need; plan strong, varied flow.
- Chalice coral
Low flow need; keep this pump's output indirect nearby.
- Harlequin shrimp
Low flow need; keep this pump's output indirect nearby.
Full spec snapshot
- Category
- Flow Pumps
- Build tier
- Budget
- Estimated price
- $60
- Tank fit range
- fits roughly 40-90 gallon systems
- Format
- AC Powerhead
- Maximum flow
- 1,350 GPH
Related reading
Questions
How many Hydor Koralia 3rd Generation 1350 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 1,350 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 1350 GPH Powerhead for?
ReefCrafter's catalog fit range for it is 40-90 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 Hydor Koralia 3rd Generation 1350 GPH Powerhead against?
EcoTech VorTech MP10wQD QuietDrive Propeller Pump (1,300 GPH vs 1,350: less flow for smaller systems); Sicce Voyager 1200 GPH Stream Pump (1,200 GPH vs 1,350: less flow for smaller systems); Reef Octopus Octo Pulse 2 Wave Pump (1,600 GPH vs 1,350: more flow).



