Beneficial bacteria keep fish tanks clear and reduce maintenance.

Reduces aquarium care with attractive pebbles containing beneficial bacteria to clarify cloudy water.

Use one EcoBio-Pebbles 6 oz. bag per 8 to maximum 16 gallons of water.*

EcoBio-Pebbles (brown)




EcoBio-Pebbles are made of porous volcanic rock and cement containing beneficial bacteria and nutrients that regularly multiply to create a healthy ecosystem. EcoBio-Pebbles can be put in a mesh bag or in an old, clean nylon and placed in a filter or in the tank.


  • Perfect for nano, designer tanks and betta fish tanks.
  • Revitalize, clarify, and purify water by naturally maintaining an eco-friendly environment.
  • Quickly establish the nitrogen cycle.
  • Reduce aquarium maintenance by significantly reducing the need to change water and vacuum gravel.
  • Simple to use --- simply rinse with chlorine-free water, soak overnight, and place in the fish tank.
  • Lasts for years --- suggested replacement of approximately 1.5 - 2 years. May last longer.
  • Can be used in both fresh water and salt water.
  • Safe for all fish, shrimp, frogs, turtles etc.
  • Removes odors.
  • No need to add liquid or powder bacteria.
  • Attractive, unobtrusive decoration for your aquascape.
  • Take approximately 2 - 6 weeks to see results.
  • Great as biofilter media.

US Patented
120-day satisfaction guarantee

Additional Info

  • Size:

    approx. 3/16" to 1/4" diameter

  • Capacity: 8 to 16 gallons of water.*
  • Note:

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

  • Weight: 6 oz. in a bag.
More in this category: « EcoBio-Stone™ Nano 2-Pack
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