EcoBio-block reviews

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New fish owner here who has spent much $$$ on all sorts of potions for the water. Took the plunge to buy your EcoBio-Block and it made the water crystal clear within three days and normalized the water chemistry in less than a week without doing anything else. We now have a very happy tank with shrimp, snails and fish. I will be buying more and recommending you to others.


I purchased a Medium EcoBio-Stone from you about 4 weeks ago. I was at my wit’s end because I could not get my 29 gal tank to have a crystal clear water. I tried all kinds of water classifiers, bio products, water changes, you name it. Nothing worked as well as I wanted. As a last ditch effort, I went on line and found out about the EcoBio-Stone. I was reluctant because of the price, but decided to give it a try.

Well, the results are nothing short of fantastic. My tank is absolutely beautiful, crystal clear and the fish look extremely healthy. What a great investment!


Had to tell you how amazing your product is. I have a 90-gallon tank with 3 koi and 6 other goldfish, and have had trouble for years maintaining water quality despite having two large filters. I purchased 2 EcoBio-Stone M and within a week, the tank had stabilized, and now the water is crystal-clear.

Awesome product!!

J.F. from new york

My water is so clear that it looks drinkable-It sure does make a difference-I will have to get online and tell people of my experience with the rock-I am thinking of buying another because of the sparkling water.

Will get back in touch with you when ready-Thank you so much for taking time to e-mail me and convince me of what the rock can really do.

Ron Smith

Just thought I would give an update on my tanks. As always the water in my 75 goldfish tank is perfect. I didn't do a water change for 5 weeks. Just wasn't up to it. I really thought the water would be horrid but it was still well within parameters.

Everyone raves about my tank, the water clarity, the plants and of course the fish. Thanks again for such a wonderful product

J. Armstrong from Canada

I purchased the EcoBio-Stone three months ago because my tank was so cloudy I couldn't see the background. For two months there was no observable change, and I really thought the stone was worthless. Then, one morning the water was so clear it looked drinkable. Since then, I haven't had to do any weekly water changes, the fish seem happier and even the plants look better.

I'm glad I had patience and let the stone do its job. I'm sold on your product! I'm thrilled with the EcoBio-Block and have been recommending it to everyone.

Jane from New York

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