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Ondersave Products
Eco Block Family Products
Eco Block Aqua
bio Block Rocks
Eco Bio-block Pebbles
EcoBio-Block for
Environmental Applications



Pretty Fish



"BTW. After several more weeks
using your Bio Block, I find the
tank is still sparkle clean, plants
seem even more healthy and my
Koi angelfish are more colorful.
As mentioned before I have
not my routine one bit since
adding your Eco Bio Block."

S. Wiener – Bucks County Aquarium Society long-time board member

Click here fore more testimonials


EcoBio-Block interviewed on 
Pet Fish Talk radio show.

Click here to listen 13 minutes
radio interview
Make Aquarium Care EASY!

Reduce Maintenance by Improving Water Quality with
EcoBio-Block Family Products. -
Beneficial bacteria in block keep aquarium water clear, and odor-free for years.
EcoBio-Block Family Products are mineral-rich, porous volcanic cement blocks containing nutrients and beneficial bacteria that regularly multiply to create a healthy ecosystem.
 Please click images for more information
 EcoBio-Block Aqua

EcoBio-Block Aqua

Use one EcoBio-Block
per 40 to 100 gallons
of water.*

Size: 3 1/2" dia x 3 1/8" H
Wt.: approx. 12oz.

*Please note that extra
blocks may be necessary
depending on condition
of water, temperature and
amount of fish.


$58.00
plus Shipping & Handling

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EcoBio-Rock

EcoBio-Rock

Use one EcoBio-Rock
per 3 to 40 gallons of water.*

Size: 3 1/2“ dia x 1 1/2“ H
Wt.: approx. 7 oz.

*Please note that extra rocks
may be necessary depending on
condition of water, temperature
and amount of fish.

Bio Block

Available in 3 colors.
From left to right: coral,
white, green

$43.00
plus Shipping & Handling

order now
EcoBio-Pebbles

EcoBio-Pebbles 

Use one EcoBio-Pebbles
6 oz. bag per 3 to 20
gallons of water.*

Each box contains one 6 oz. bag.

*Please note that extra pebbles
may be necessary depending on
condition of water, temperature
and amount of fish.

EBP 3-colors

Available 3 colors,
From left to right:
black, brown, or green.


$37.00
plus Shipping & Handling

Order Now