Kessil A360X Controllable LED Tuna Blue fit check
Kessil A360X Controllable LED Tuna Blue is a 90W reef light listing about 24x24 in of coverage and roughly 280 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.
Kessil A360X Controllable LED Tuna Blue: 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.
- ✓ 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 90 gallons without adding capacity elsewhere.
- ✕ Footprints larger than about 24x24 in from one unit.
Listed features
- dimmable color/intensity dials
- sub-controller compatible (Apex, ReefBeat)
Compatibility math
Coverage and PAR
Example: A common 75g footprint is 864 sq in; this fixture lists about 576 sq in and 280 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.
- Kessil A360X Controllable LED Tuna Blue fits roughly 40-90 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Kessil A360X Controllable LED with WiFi Dongle
Same 280 PAR at 18 in; compare format and features instead.
- EcoTech Marine Radion XR15 G6 Blue LED
290 PAR at 18 in vs 280: more intensity for higher-light corals.
- Orphek Atlantik iCon Compact
250 PAR at 18 in vs 280: less intensity, suited to lower-light corals.
Livestock this affects
- Hammer coral
Moderate light need; within this fixture's listed PAR.
- Kenya tree coral
Low light need; within this fixture's listed PAR.
- Maxima clam
High light need; within this fixture's listed PAR.
- Montipora
High light need; within this fixture's listed PAR.
Full spec snapshot
- Category
- Lights
- Build tier
- Balanced
- Estimated price
- $449
- Tank fit range
- fits roughly 40-90 gallon systems
- Format
- Puck LED
- Coverage
- 576 sq in
- PAR at 18 in
- 280
Related reading
Questions
Can the Kessil A360X Controllable LED Tuna Blue grow SPS corals?
Its listed 280 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 Kessil A360X Controllable LED Tuna Blue 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 Kessil A360X Controllable LED Tuna Blue 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 Kessil A360X Controllable LED Tuna Blue against?
Kessil A360X Controllable LED with WiFi Dongle (Same 280 PAR at 18 in; compare format and features instead); EcoTech Marine Radion XR15 G6 Blue LED (290 PAR at 18 in vs 280: more intensity for higher-light corals); Orphek Atlantik iCon Compact (250 PAR at 18 in vs 280: less intensity, suited to lower-light corals).
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