ONEdersave Products

EcoBio-Stone™ S

EcoBio-Stone S for aquarium care made simple.


Make cloudy aquarium water clear and healthy with simple-to-use EcoBio-Stones. Effective bacteria live and multiply in the stone, using nature's own mechanism for keeping water clean.  


Use one EcoBio-Stone S in 4 to maximum 20 gallons of water.*


EcoBio-Stone S (coral)



EcoBio-Stone S (green)




EcoBio-Stone S for small or nano tanks is a volcanic rock and cement block containing nutrients and beneficial bacteria that regularly multiply to create a healthy ecosystem.

  • • Quickly establishes nitrifying bacteria in new aquariums
  • • Speeds up nitrogen cycle.
  • • Takes approximately 2 - 6 weeks for results.
  • • Minimizes aquarium maintenance by greatly reducing the need to change water and vacuum gravel.
  • • Revitalizes, and clarifies water by using beneficial bacteria found in nature to break down harmful organic matter.
  • • Easy-to-use --- simply rinse with chlorine-free water, soak overnight, and place in the fish tank.
  • • Can be used in both fresh water and salt water.
  • • Safe for all fish, shrimp, frogs, turtles, etc. and creates a healthier environment.
  • • Removes odors
  • • No need to add liquid or powder bacteria.
  • • Lasts for years --- suggested replacement of approximately 1.5 - 2 year
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Additional Info

  • Size:

    approx. 2 1/2“ dia x 2“ H

  • Capacity: 4 to 20 gallons of water.*
  • Note:

    Extra blocks may be necessary depending on variations in the condition of water, temperature and amount of fish.

  • Weight: approx. 7 oz.