Fluval Bio Max Rings - 1100gm aqua soil White plastic

White plastic

With long term use there will be a tendency to stabilize at pH 8

It is also safe for anemones and polyps

or supplementary filter for larger aquariums

Fluval Bio Max Rings - 1100gm aqua soil White plasticFluval Bio Max Rings 1100gm Fluval BioMax 1100gm Fluval BIOMAX bio rings have a complex pore system where beneficial bacteria can thrive. They have more capacity than most biological media, which ensures optimal contact time for greater efficiency. BIOMAX also reduces and controls ammonia and nitrite. Biological filter media Supports thriving beneficial bacteria growth Reduces and controls ammonia and nitrite More efficient than most biological filter