Aquarium Lighting Calculator

Find the ideal lighting power, PAR target and photoperiod for your reef or planted aquarium.

Tank type

Fish only / FOWLR

Soft corals

LPS / Mixed reef

SPS dominant

Tank volume

Water depth

Distance from the light to the substrate. Deeper tanks need stronger fixtures.

LED power

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PAR target

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µmol/m²/s

Photoperiod

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0PAR scale500

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OceanLab Lighting Calculator

Aquarium Lighting Calculator — PAR, Watts & Photoperiod | Oceanlab™