Reef Lighting Calculator
Size reef LEDs from your tank footprint + coral type, then see fixtures we sell that clear manufacturer coverage — with a clear “why this works” grounded in brand coverage tables.
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.