2-Pack EcoBio-Block EBSNC20107 Volcanic Stone Nano Water Clarifier

Tracey MealerTracey Mealer: These eco-blocks are great for your fish tank especially when they’re cloudy as you can see the picture above my aquarium is still cloudy. When I first put the block in there you could barely see it after two or three days it’s cleared up quite a lot. I say two more days and it’ll be crystal clear water again. I’ve done water changes and all that like I said, and it still comes cloudy with that eco-block it’s giving off minerals and all that other stuff as long as you keep it by Bobo for some reason and it works great.

United States on Sep 01, 2023

Lee R: I needed something to help keep my 3 gallon tank clean. Yes, I have an air filter and a filter unit; but goldfish are known for a lot of waste. Before I had these stones, I would do a 50% water change and it would bare last four days before I had to clean it again. Now, the water stays clear for a week. I am amazed and really happy to have found these. Totally worth the money!!

United States on Jun 08, 2023

Flute TeacherFlute Teacher: I added these two cubes to my 5 gallon tank and it made no difference to the slight cloudiness I was trying to dissipate.

Canada on Dec 05, 2022

Sophia: Ordered a 2 pack and it only had one..may work but with the size of my tank..may never know..didn't send back because of the hassle..

United States on Apr 27, 2022

Coco ArreolaCoco Arreola: Ok first off, I read the instructions and then I totally didn't follow them because I'm stupid lol. That said, I'm so glad nothing happened to my fish lol. I've only been using this for 3 days now and it seems to be harmless for the fish. Especially since I didn't wash the cubes before hand. I just through them in the tank. I know, my bad. Anyway, the water seems to be clearing up. I scrubbed the glass before putting the in but hopefully this will help keep algae from growing again.

Update!
It's been weeks now and the algae has gotten worse. These did absolutely nothing to help. I ended up getting some liquid from the pet store to help control the issue and it has worked perfectly. Huge difference within one day. I highly recommend getting something from the pet store not these stones

United States on Apr 03, 2022

CStep: I'm rather amazed that this did work as advertised. I tried many things previously with poor results but 9 months later the aquarium is still clear and water changes were far less necessary.

United States on Mar 23, 2022

Kim: A bit pricey but these really work so worth it if you want something natural and low maintenance to help keep your tank clear and clean.

Canada on Mar 27, 2020