WIO - Nautilus Dark RiverBed Size:2kg Nitrax is a biological filter

Nitrax is a biological filter on the containing specialist microorganisms to break down poisonous metabolites (ammonium/nitrite) in your aquarium

or more frequently in heavily stocked or high-maintenance aquariums

PREVENTS METABOLIC BONE DISEASE

Minimal ammonia spike

Automatic dosing and monitor system

WIO - Nautilus Dark RiverBed Size:2kg Nitrax is a biological filterNautilus Dark is a unique and high contrast Riverbed inspired by the bed of Lake Turkana in Africa and the black snail shell blends found in streams and ditches in the Pantanal wetlands of Brazil. It is a mix blend of dark sands, gravels, crush shells, and different sizes shells that create a natural and realistic look for your aquarium. Description Nautilus Dark is an ideal substrate for aquascapers or biotope enthusiasts looking to recreate natural