EcoBio-Block EcoBio-Stone Nano Natural Water Clarifier & Odor Remover

By EcoBio-Block
Rated 4 out of 5 stars
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EcoBio-Block EcoBio-Stone Nano Natural Water Clarifier & Odor Remover, 1 count slide 1 of 2
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EcoBio-Block EcoBio-Stone Nano Natural Water Clarifier & Odor Remover, 1 count slide 1 of 2

$11.96Chewy Price
$11.36Autoship Price
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About This Item

  • Natural volcanic rock contains beneficial bacteria spores to help clear cloudy water.
  • The bacteria lives and multiplies in the rock to help keep the water clean and odor-free.
  • Suitable for fresh or salt water and can treat aquariums that hold 0.8 to 1.5 gallons of water.
  • Can continually replenish bacteria for up to a year, reducing the need for frequent maintenance.
  • Perfect for betta homes and all nano aquariums. Can be used for fish, amphibians, reptiles and other aquatic life.

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Top IngredientsN/AN/ADeionized Water, Aluminum Chlorohydrate, Polyelectrolytes.N/AN/A
Fish TypeBetta, Bottom Feeder, Cichlid...Tropical Freshwater, Betta, Cichlid, GoldfishTropical FreshwaterTropical FreshwaterTropical Freshwater, Betta, Cichlid, Goldfish, Bottom Feeder
Aquarium TypeSaltwater, FreshwaterFreshwaterFreshwaterFreshwaterFreshwater

Questions & Answers

10 Customer Questions

Can I put this in my cat’s water fountain to reduce calcium buildup?
Answer by ChewyJan 06, 2021
This product is intended aquariums and for fish, amphibians, reptiles and other aquatic life only. It is not intended to be used in water fountains.

Do you still need to use a filter or does this replace the filter?
Answer by ChewyNov 01, 2020
EcoBio-Stone Nano safely purifies water, eliminates odors and creates a clear and clean environment for fish and other aquatic life just as in nature. However, this does not replace the use of a filter and one may still be needed depending on the type of fish being kept.

I have a 6.5 gallon tank. How many stones would I need?
Answer by ChewyJan 03, 2022
One stone every 1.5 gallons of water and the 2 count can treat 1.5 to 3 gallons.

How do these bio stones help with ammonia removal?
Answer by ChewyJun 12, 2021
This natural volcanic rock contains 100% pure beneficial bacteria spores that help clarify cloudy water. The bacteria naturally multiply to promote a healthier ecosystem.

ReviewsWrite a Review

Rated 4 out of 5 stars
8 Reviews
Would recommend to a friend

8 Customer Reviews

Rated 1 out of 5 stars
By Barb on Jun 13, 2022

Do Not Bother Buying

I purchased these for my tank, however they did nothing for it. I put them in based on the size tank after cleaning and within a couple of weeks my tank was back to where it was before I cleaned it. I will never buy or use these again and do not reccomend them.

Rated 5 out of 5 stars
By valemary on Nov 24, 2021

Love these blocks

I have one in my small aquarium, I was super frustrated with the cloudy water, google kept coming back to these on every search. I was reluctant to purchase but so happy I did. My water took a couple of weeks to clear but now it has been good and clear for months. So I purchased a small stone for my betta tank that I am getting ready to set up. Highly recommend these ecobio stones. If only there was a magic remedy hair algea.

Rated 5 out of 5 stars
By KizziAnn on Jul 21, 2021

Amazingly Clear

These had me on the fence since there were very few reviews and some were negative. The price was worth the try and I must say it was an amazing investment!! It's best that you don't use chemicals to make your water clear. These are all natural which is the best way to go. It took no time for these to work and my water is very clear!

Rated 5 out of 5 stars
By ninmorth on Jul 9, 2021

It works & its not a gimmick!

I have a 3 gallon tank that kept getting cloudy. Water changes didn't work, I used water clarify products that didn't work. I gave this a shot thinking it wouldn't work. It took 10 days but it was worth it to finally wake up one day to a clear tank!

Rated 5 out of 5 stars
By Michele on Dec 30, 2020

Bio blocks for aquariums

The package was the exact product we were looking for. They were smaller than expected, but are perfect for our tank

Rated 5 out of 5 stars
By Happy on Aug 3, 2020


Have had these in my tanks for they help with the water clarity. think they are worth the investment and they last long enough that they are budget friendly over the long life of the product.

Rated 1 out of 5 stars
By APLady on Jun 2, 2020

Didn't work for me

Water did not change in appearance after a month of use...

Rated 5 out of 5 stars
By CJ711 on Jun 19, 2019

Works for Me

I have a 29 gallon tank with a Cory catfish and a Huge plecostomus that was really getting funky. Despite using liquid chemicals that are designed to solve the problem, as well as partial and even complete water changes, it would get smelly soon after. I put 4 of these blocks in as a last ditch effort and I can finally walk past my tank without having to hold my breath.