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EcoBio-Stone S for small-size aquariums is a volcanic rock and cement block containing beneficial bacteria spores which are activated by organic waste in water. Extra blocks may be necessary depending on variations in the condition of water, temperature and amount of fish.
2.5 x 2.5 x 2.0
Tank capacity (gal.):
Easy to use in just 3 simple steps
Makes cloudy fish tanks clear and healthy
Minimize aquarium maintenance: Lasts for up to 2 years
Removes smelly tank odors
Safe for all fish, shrimp, frogs, and turtles
Speeds up the nitrogen cycle
EcoBio-Stone S makes cloudy fish tanks clear and healthy with special beneficial bacteria which multiply when immersed in water.