Nautilus Emergency Float Valve coral The nitrate concentration in a

The nitrate concentration in a reef aquarium should be lower than 1 mg/L

Tideline Drain Kit - Universal (for 1" and 1-1/2" drain hole sizes)

hardy macroalgae widely used in saltwater refugiums and sumps to naturally reduce unwanted nutrients

And when used properly

reef-safe elimination of Aiptasia

Nautilus Emergency Float Valve coral The nitrate concentration in aThe Nautilus emergency float valve shuts off your pump automatically when it detects high or low water levels. An audible alarm sounds when the float is tripped. This is useful for protein skimmers when the collection cup fills it will shut the pump off and prevent overflows. In sump it is useful for protection from low water levels the pump will fully shut off before it begins drawing in air. (Nautilus pumps have additional dry run cutoffs built in