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

4.1 4.1 out of 5 stars 4,807 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Terrarium Bedding by Exo Terra

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Purchase options and add-ons

Brand Exo Terra
Liquid Volume 30 Liters, 10 Gallons
Item Weight 1.12 Ounces
Item Form Stick
Target Species Turtle, Reptile, Snake

About this item

  • Moss Ball traps phosphate, nitrite and nitrate
  • Easy and effective deodorizer for aquatic turtle terrariums
  • Special absorption resin reduces organic matter accumulation
  • Effectively creates ideal conditions for animals and plants for up to 2 months
  • Treats 10-20-gallon (30-60 L) terrariums/aqua-terrariums

Customer ratings by feature

Easy to use
4.0 4.0
Value for money
3.6 3.6
Scent
3.4 3.4
Sheerness
3.4 3.4

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Exo Terra Moss Ball, Water Clarity and Odor Control for Aqua-Terrariums, PT2478, Green
Exo Terra Moss Ball, Water Clarity and Odor Control for Aqua-Terrariums, PT2478, Green
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Price-22% $6.21
List:$7.99
$9.29-42% $11.06
List:$18.99
-30% $8.48
List:$12.18
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to use
4.0
4.3
3.9
4.7
Value for money
3.6
4.1
4.0
4.5
Sheerness
3.4
4.1
4.1
Scent
3.4
4.4
Easy to clean
3.2
4.0
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
target species
Snake, Reptile, Turtle
Fish
Fish
Reptile
liquid volume
10.0 gallons, 30.0 liters
8 fluid ounces
8 fluid ounces
form
Stick
Stick
Stick
Liquid
weight
1.12 ounces
0.62 pounds
1 pounds
0.3 pounds

From the manufacturer

Exo Terra Moss Ball Clarity And Odour Control

The Exo Terra Moss Ball helps provide crystal clear water and reduce odors. Designed to resemble its natural counterpart, the Exo Terra Moss Ball contains a special absorption resin that helps reduce many of the compounds that encourage unsightly organic matter accumulation.

By absorbing and trapping phosphate, nitrite and nitrate within its core, the Exo Terra Moss Ball helps to create ideal conditions for animals and plants and makes aqua-terrarium maintenance easy.

Key Features :

  • Traps phosphate, nitrite and nitrate
  • Easy and effective deodorizer
  • Reduces organic matter accumulation
  • Effective for up to 2 months
  • Treats 30-60 liter (10-20 gal) terrariums

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.5 x 4.2 x 6.9 inches; 1.12 ounces
  • Item model number ‏ : ‎ PT2478
  • Date First Available ‏ : ‎ June 24, 2010
  • Manufacturer ‏ : ‎ Rolf C. Hagen (USA) Corp.
  • ASIN ‏ : ‎ B004MYIENA
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.1 4.1 out of 5 stars 4,807 ratings

Looking for specific info?

Product Description

The Exo Terra Moss Ball helps provide crystal clear water and reduce odors. Designed to resemble its natural counterpart, the Exo Terra Moss Ball contains a special absorption resin that helps reduce many of the compounds that encourage unsightly organic matter accumulation. By absorbing and trapping phosphate, nitrite and nitrate within its core, the Exo Terra Moss Ball helps to create ideal conditions for animals and plants and makes aqua-terrarium maintenance easy.

Directions: Place Exo Terra Moss Ball in the water part of the terrarium/aqua-terrarium. Depending on the water volume, replace with new Exo Terra Moss Ball every two months for maximum effectiveness.

Over the years, Exo Terra has become the market leader in reptile products for the natural terrarium. This achievement was made possible by the philosophy of successful, continuous innovation, which has become a basic underlying commitment, a culture and an attitude. Exo Terra has developed a complete line of terrariums and terrarium accessories, including glass terrariums, reptile terrariums, frog terrariums, turtle terrariums, snake terrariums, gecko terrariums, bearded dragon terrariums, small terrariums, large terrariums, terrarium humidifiers, terrarium heaters, terrarium thermometers, terrariums heat lamps, terrarium light bulbs, terrarium plants and terrarium decorations.

Important information

Directions

Follow individual packaging instructions for recommended replacement intervals.

Customer reviews

4.1 out of 5 stars
4.1 out of 5
4,807 global ratings

Customers say

Customers like the quality, performance, and smell of the aquarium pond water treatment. They mention that it looks very realistic once in water, and helps keep the water clear and algae free. Some say that it works well and that it keeps the smell away. However, some customers have issues with moss, floatability, and color. Opinions are mixed on value.

AI-generated from the text of customer reviews

118 customers mention84 positive34 negative

Customers like the quality of the aquarium pond water treatment. They say it looks real good, is realistic, and is a perfect addition to their tanks. Some customers even say it's a great item for a fish tank.

"...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..." Read more

"...They look more realistic once they’re in the tankThey do seem to help with nitrates...." Read more

"It’s a nice decorative piece for your tank but does not serve its purpose of water clarity and conditioning and does not float!..." Read more

"I bought two and they look great in the tank. Good quality and arrived quickly." Read more

104 customers mention84 positive20 negative

Customers like the water quality of the aquarium pond water treatment. They say it helps keep the water clear and algae free. Some say that the moss ball does clear the water up instantly. Overall, most are satisfied with the product's ability to improve water quality.

"...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..." Read more

"It keeps my turtle take smell at bay, keeps the water clear" Read more

"...they were scrubby sponges designed just for them. The water is staying clean longer, the smell has reduced so..." Read more

"...with them and pushes them around and I’ve noticed that they also clear up the water. Overall, a great buy at a great price." Read more

78 customers mention60 positive18 negative

Customers like the performance of the aquarium pond water treatment. They say it works well, produces amazing results, and is a great product. Some customers also say that the moss balls work okay but you still need to find a way to keep them. Overall, most are satisfied with the performance and recommend the product to others.

"...It says it is for a 10 to 20 gallon aquarium, but it works perfect in my 29 gallon." Read more

"Comes as shownWorks as advertised." Read more

"...these since you can’t get real moss balls anymore and they seem to work pretty well...." Read more

"Doesn't do much for my turtle tank. Did pick up some of the crime" Read more

72 customers mention60 positive12 negative

Customers like the smell of the aquarium pond water treatment. They say it keeps the smell away and is a great value. Customers also mention that the floats are not slimy or anything.

"It keeps my turtle take smell at bay, keeps the water clear" Read more

"...The water is staying clean longer, the smell has reduced somuch it’s hard to tell I have a turtle tank in the room!..." Read more

"These absolutely get rid of the stinky algae smell and my fish love to play with them." Read more

"I have this in with my betta, I haven’t had any issues so far! Keeps the odor down for sure!..." Read more

58 customers mention33 positive25 negative

Customers are mixed about the value of the aquarium pond water treatment. Some mention that it works well and is a great value, while others say that it was a waste of money, completely pointless, and disappointing. Overall, opinions are mixed and the product is rated as a bit pricey.

"...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..." Read more

"Waste of money don’t work" Read more

"...Maybe it helps but I cannot confirm. The product is not expensive so if your tank needs help it’s probably worth a try." Read more

"...Completely pointless. I even soaked it for several hours before placing it in my tank. I would never recommend this." Read more

39 customers mention3 positive36 negative

Customers are dissatisfied with the moss. They mention it's not a real mosses ball, made of synthetic material, and it collects mildew and mold. Some customers also say that it'd be better off using real pond mossed.

"It’s not real moss, it’s like the tail of a teddy bear but green." Read more

"...my problem isn't necessarily that it's not a real plant, not real moss, but that probably to purchasing i looked in the description for whether or..." Read more

"...i had it for a month but i think it helps a little ut too big and fake moss ball" Read more

"I'm so bummed but I didn't read good. These are NOT Marimo moss balls. These are very hard moss, stitched around a solid hard core...." Read more

23 customers mention0 positive23 negative

Customers are dissatisfied with the floatability of the aquarium pond water treatment. They mention that it floats to the top and doesn't sink. Some say that it sinks after a day or two.

"...does not serve its purpose of water clarity and conditioning and does not float!..." Read more

"Didnt see the point. It sinks after a day or two" Read more

"...The main con is that they are difficult to get underwater. I have two that I finally got to sink, but my third is floating." Read more

"...with the filter the only bad thing for some reason mine sunk to the bottom of the tank so I had to take them out squeeze the water out of them and..." Read more

15 customers mention0 positive15 negative

Customers are dissatisfied with the color of the moss ball. They mention it's made out of weird synthetic fur-like material dyed green. Some say the color is not very green, and it turns the entire tank green. Customers also say the sphagnum mosses are charcoal balls covered in fake fur that fades to a gross brown.

"...I was very impressed. Even though it looks like all the fur is gone, I feel like it’s still doing it’s job...." Read more

"...The color is not life-like at all...." Read more

"...But it's like a muppet egg, a weird dull color and fuzzy like a stuffed toy. And I thought they floated......" Read more

"...not a natural material - it's a fuzzy ball made out of synthetic fuzzy fabric - kind of like a stuffed animal...." Read more

Turtle plays with it
4 Stars
Turtle plays with it
It was exactly as described which is not the case with all brands. Our turtle likes to play with it, keeps her entertained.
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Top reviews from the United States

Reviewed in the United States on March 9, 2024
Reviewed in the United States on October 20, 2023
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5.0 out of 5 stars Worked super well!!
Reviewed in the United States on October 20, 2023
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.
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21 people found this helpful
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Reviewed in the United States on March 10, 2024
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4.0 out of 5 stars Turtle plays with it
Reviewed in the United States on March 10, 2024
It was exactly as described which is not the case with all brands. Our turtle likes to play with it, keeps her entertained.
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Reviewed in the United States on January 18, 2024
Reviewed in the United States on January 12, 2024
5 people found this helpful
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Reviewed in the United States on February 7, 2024
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1.0 out of 5 stars Nice little decoration but doesn’t serve its purpose
Reviewed in the United States on February 7, 2024
It’s a nice decorative piece for your tank but does not serve its purpose of water clarity and conditioning and does not float! I’ve had it in for about a week now and it’s still rising to the top of my tank unless held down by something else.
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One person found this helpful
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Reviewed in the United States on March 3, 2024
Reviewed in the United States on April 6, 2023
7 people found this helpful
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Top reviews from other countries

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Jolasten eta ikasten
5.0 out of 5 stars necesita mejorar el empaquetado y le cuesta undirse
Reviewed in Spain on February 15, 2024
Amandine Sart
1.0 out of 5 stars Reçus telle que sans les mousses
Reviewed in France on February 15, 2022
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Amandine Sart
1.0 out of 5 stars Reçus telle que sans les mousses
Reviewed in France on February 15, 2022
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One person found this helpful
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Sebastian Gustavsson
5.0 out of 5 stars Good moss ball
Reviewed in Germany on January 2, 2021
naomi meyer
5.0 out of 5 stars Excelente
Reviewed in Mexico on December 27, 2018
One person found this helpful
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Laidan
1.0 out of 5 stars Pessimo
Reviewed in Italy on July 6, 2020