Reef Lighting Calculator
Reef lighting calculator
Reef LED coverage calculator — enter tank size (cm) and coral type (softies/LPS, mixed reef, or SPS), then see fixtures we sell (Aqua Illumination, EcoTech Radion, Kessil) that clear manufacturer coverage, with a clear “why this works”.
Match brand coverage footprints to your display, adjust fixture count on the map, then shop in-stock lights.
1. Display dimensions (cm)
Use internal glass-to-glass length × width, and typical water depth (not tank height with rim).
2. Coral type
Mixed reef — we use each brand’s mixed-reef coverage figure where published.
3. Fixture style
Full coverage adds AI Blade Grow onto each panel pick for fill PAR / less shading (hybrid). Primary only hides Glow bars.
Relative intensity from brand coverage footprints, beam angle / optics, and fixture watts (not µMol PAR), plus real fixture body size. Tap a recommendation, then use − / + to change fixture count.
Matched to manufacturer coverage for your coral type. In-stock first. Use − / + on a card to change fixture count and watch the coverage map update.