Neptune GRO Refugium Light - Flat Mount Other LED Lights Then use a maintenance dose

Then use a maintenance dose of 1 capful or 5 ml per 80 L (20 US gallons) with additions of livestock or after disruption of the biofilter through cleaning or medications

Official track guide lists this size for aquariums approximately 18

Use: Viewing aquariums under blue

freshwater planted tank

Neptune GRO Refugium Light - Flat Mount Other LED Lights Then use a maintenance doseNeptune GRO Refugium Light Flat Mount Neptune GRO Refugium Light Flat Mount is a compact 20W LED refugium light designed to grow macroalgae such as Chaetomorpha while mounting securely to a flat sump edge or stand support. GRO Refugium Light for Macroalgae Growth The Neptune GRO is built specifically for refugium use, with a flat rectangular light panel that spreads output across a broad area instead of concentrating light into a narrow spotlight.