AquaIllumination Hydra 32HD Reef LED Black fit check
AquaIllumination Hydra 32HD Reef LED Black is a 90W reef light listing about 24x24 in of coverage and roughly 320 PAR at 18 inches. That clears ReefCrafter's PAR targets for soft coral, LPS, mixed reef, and SPS tanks. Tanks wider or longer than 24x24 in need a second fixture or a mounting plan that spreads light.
AquaIllumination Hydra 32HD Reef LED Black: fits roughly 40-120 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.
Who it is for
Good fit for
- ✓ 40-120 gallon systems, per the catalog fit range.
- ✓ Soft coral (50-150 PAR), LPS (100-200 PAR), mixed reef (150-250 PAR), and SPS (250-350 PAR) goals at about 18 in depth.
Not a fit for
- ✕ Tanks under about 40 gallons; it is sized above them.
- ✕ Systems over about 120 gallons without adding capacity elsewhere.
- ✕ Footprints larger than about 24x24 in from one unit.
Listed features
- redesigned cluster
- Mobius/myAI app
Compatibility math
Coverage and PAR
Example: A common 75g footprint is 864 sq in; this fixture lists about 576 sq in and 320 PAR at 18 in.
ReefCrafter checks spread and intensity separately because a bright hotspot still leaves dim edges.
Risk notes
- The common mistake is buying a light that grows soft corals now but cannot support the mixed or SPS reef the keeper already wants.
- Large or SPS-heavy tanks may need multiple fixtures even when one light technically fits the gallons.
Professional fit context
- Match coverage width, coverage length, PAR at depth, mounting plan, and fixture count.
- AquaIllumination Hydra 32HD Reef LED Black fits roughly 40-120 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- EcoTech Marine Radion XR15 G6 Pro LED
330 PAR at 18 in vs 320: more intensity for higher-light corals.
- Orphek Atlantik iCon
350 PAR at 18 in vs 320: more intensity for higher-light corals.
- EcoTech Marine Radion XR15 G6 Blue LED
290 PAR at 18 in vs 320: less intensity, suited to lower-light corals.
Livestock this affects
- Red montipora capricornis
High light need; within this fixture's listed PAR.
- Ricordea mushroom
Moderate light need; within this fixture's listed PAR.
- Rock flower anemone
Moderate light need; within this fixture's listed PAR.
- Stylophora coral
High light need; within this fixture's listed PAR.
Full spec snapshot
- Category
- Lights
- Build tier
- Balanced
- Estimated price
- $549
- Tank fit range
- fits roughly 40-120 gallon systems
- Format
- Puck LED
- Coverage
- 576 sq in
- PAR at 18 in
- 320
Related reading
Questions
Can the AquaIllumination Hydra 32HD Reef LED Black grow SPS corals?
Its listed 320 PAR at 18 inches meets ReefCrafter's SPS target of 250-350 PAR near the coverage center. Edges and deeper rock will read lower, so place SPS high and centered.
How large a tank does one AquaIllumination Hydra 32HD Reef LED Black cover?
The listing gives about 24x24 inches of coverage. A tank footprint larger than that needs another fixture or a raised, spread mounting plan to avoid dim edges.
What tank size is the AquaIllumination Hydra 32HD Reef LED Black for?
ReefCrafter's catalog fit range for it is 40-120 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 AquaIllumination Hydra 32HD Reef LED Black against?
EcoTech Marine Radion XR15 G6 Pro LED (330 PAR at 18 in vs 320: more intensity for higher-light corals); Orphek Atlantik iCon (350 PAR at 18 in vs 320: more intensity for higher-light corals); EcoTech Marine Radion XR15 G6 Blue LED (290 PAR at 18 in vs 320: less intensity, suited to lower-light corals).
