Exo Terra Moss Ball, Water Clarity and Odor Control for Aqua-Terrariums, PT2478, Green

I’ve seen a lot of reviews saying it looks like a teddy bears tail was cut off, but obviously this isn’t real moss. Others say it floats and I have to agree it doesn’t just sink right away, however if you hold it under water and move it around you’ll start to see bubbles and it’ll eventually sink. Patience is key! As far as replicating a moss ball it looks very nice and high quality in my Bettas 9 gallon tank and ended up sitting perfectly on the wood piece decor as shown. Lately the tanks water had been cloudy and I tried everything from water clarifiers to bio capsule water cleaners and non of those worked! I put the moss ball in the tank a few days ago and within 4 days, the water cleared up noticeably better to the point it looked like I had just cleaned it and put fresh water in. Also the smell of fish water has almost entirely gone away too unless I’m standing directly over it. The fact these can stay in for months and help keep the water clear makes this highly worth the money for anybody looking for a moss ball either for decor or for keeping the water clear.

Let me start with this ... I've had aquariums since I was a teenager (40+ years) In all those years I have never had a problem with my water parameters and/or cloudy water. I haven't had an aquarium for a couple of years, becuase i was caring for my elderly uncle. About 3 months ago, I decided to go back to having fish. I was constantly checking my water parameters and everything would be off and my water was so cloudy I could barely see my goldfish. I was constantly changing the water and the next day it would be the same thing. The only thing different from now than all those other years is now I'm on city water, before I was on well water. I search on the internet for a solution and I read about these Moss Balls. My first 1 was bought at PetSmart. I couldn't believe the change in my water. Cloudiness is gone and water parameters stay the same, Haven't changed my water in 2 weeks. I can see my Black Moor Goldfish, now. So I bought 2 more, here on Amazon. This is one thing that is going to be in my necessities for my aquariums. It says it is for a 10 to 20 gallon aquarium, but it works perfect in my 29 gallon.

Seems to work and looks cool

we were happy to have found these online because our store is typically out of stock, it appears as pictured, great size especially in a 30 gallon tank - however I can't honestly speak to if it directly provides water clarity as we do have a high powered filter that has a cleaning option on it for water clarity, along with water clarity cleaning solutions, calcium blocks and more which all aid in water clarity, but it's a good look and doesn't affect the tank or our babies negatively

These are fairly large, but are not real moss balls. The color is OK I highly recommend rinsing them off before adding them to your fish tank. There’s obviously a difference between these and real moss. See picture for reference. It’s the one on the right is real mass. The one on the left is not.

The size is medium but I don’t think this product benefits my turtles in 2 days out the water so dirty so I throw it away. It said that is for clarity and odor control but I don’t think so

My betta fish loves to take naps on it!!!!! That alone is worth the purchase!!!! it does work for the water clarity and smell I believe!!!

This works great in axolotl tanks. My ax would push them around his tank. It takes a minute for them to sink, but overall it was easy to use. They are supposed to help filter the water, which didn't seem to be the case with me, but I kept it clean in other ways. The price was decent as well compared to local pet stores.