API Nitra-Zorb Aquarium Canister Filter Filtration Pouch, Size 6
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Help reduce nitrate in your aquarium and create conditions for fish to thrive with API Nitra-Zorb Filtration Media. Fish waste, uneaten food, plant refuse and other organic matter increase nitrate, nitrite and ammonia levels which is harmful to fish. These conditions cause gill damage, stress, illness and even lead to fish loss. API's Nitra-Zorb Filtration Media reduces this risk of fish loss with high-quality filtration media that targets and removes nitrate, nitrite and ammonia from freshwater aquariums. It is composed of natural and synthetic ion-exchange resins in a convenient pouch and can be recharged. Use during aquarium set up or whenever nitrate or ammonia levels are above 20 ppm.
Key Benefits- Removes toxic ammonia, nitrate and nitrite. Ready to use pouch for freshwater aquariums.
- Reduces this risk of fish loss with high-quality filtration media that targets and removes nitrate, nitrite and ammonia from freshwater aquariums.
- Composed of natural and synthetic ion-exchange resins in a convenient pouch and can be recharged.
- Use during aquarium set up or whenever nitrate or ammonia levels are above 200 ppm.
- Can be easily recharged with freshwater aquarium salt.
Compatible Products
See all compatible API filters.
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Item Number94527
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Aquarium TypeFreshwater
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Fish TypeTropical Freshwater, Betta, Cichlid, Goldfish
Rinse pouch under tap water. Place pouch in path of water flow in the aquarium filter. For a new aquarium or when ammonia or nitrite is detected: recharge every 5 days for the first month, and then every 2 weeks for the second month. For an established aquarium: recharge every 2 weeks. When nitrate is detected: recharge every 5 days until nitrate is reduced to 20 ppm (mg/L) or less. Replace pouch after 2 months.
What size are API NITRA-ZORB pouches?
These pouches are size 6, and are designed to work with tanks up to 55 gallons.
What are the dimensions of API NITRA-ZORB bags?
The actual pouch is 7 x 7 inches square, but because of the media, the final dimensions are 7 x 6.5 inches. The pouch is sized to sit nicely in one of the baskets of the Filstar canister filters. All of the size 6 pouches (Phos-Zorb, Nitra-Zorb, Bio-Chem Zorb, Activated Carbon, etc.) will be this size. This pouch does not have any stiffness to it, and may easily be placed in the back of a hang-on-back filter, or other sizes of a canister filter. If the filter is very small, the pouch can be cut open and partial contents can be put into a small filter sock.
Does API NITRA-ZORB replace other media bags?
API NITRA-ZORB filtration should not fully replace other media; it is for temporary use only.
How is this product different from API BIO-CHEM ZORB, API PHOS-ZORB, etc.? What makes one a good choice over the other?
API NITRA-ZORB specifically works to target and remove ammonia, nitrites, and nitrates from your aquarium, all of which are harmful at high levels for your fish. Use API NITRA-ZORB if these levels consistently spike. Contrarily, API BIO-CHEM ZORB works to remove more general aquarium pollutants, such as colors, odors, heavy metals, and toxic gases. API PHOS-ZORB specifically targets phosphate and silicate in aquarium water.
Customer Reviews
79% Recommend
79% of reviewersrecommend this product
You've Already Reviewed This Item
14 Reviews
Showing 1-10 of 14 Reviews
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Great Product for me.
By cats on Jun 28, 2020
Used this product in my 30 gallon aquarium and after 2 days the Nitrates dropped to 5.0 ppm from a blood red looking vile or maybe over 100 ppm. It's to early for the final result, but so far great results. I swapped out for a new filter and cleaned the filter chamber and added the bag behind the filter. I believe my problem was from over stocking the tank along with over feeding and infrequent filter changes. I also needed to up the volume of water changes instead of just 5 gallons at a time. I was doing frequent water changes at the 5 gallon volume to bring down the numbers, but no change until I added this product. I'm going to recharge the bag in a few days.
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Great product!!
By Adele on Jul 29, 2020
Highly recommend. Fantastic carbonless filtration system for 30-50 gallon tanks!
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no good it is not working this product
By Nitrazorb on Apr 28, 2020
After 10 days in my aquarium , second recharged already did I have not seen any positive results
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Love this!
By Jennifer on Dec 23, 2019
After 24 hours in my filter, my ammonia went to 0, and my nitrates were reduced by half. It's easy to recharge, and will definitely buy again in the future. Had to rinse it several times before adding it, so make sure you do too!
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I think it's working?
By Shod on May 4, 2019
The nitrate level has been decreasing since purchasing and using this stuff, but it still doesn't seem to be the best. Not really certain if it's the stuff or something we're doing though.
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One bag took care of over 400 gallons!
By StormyJ on May 27, 2018
Our sump system for comet goldfish at work had an ongoing nitrate problem to the point we were losing dozens of fish day. As a last ditch effort after exhausting all other options to save our fish, we tossed a bag of Nitra Zorb into the sump. The next day, the nitrates that had been at nearly 200ppm had HALVED. One recharge later and the nitrate problem is resolved and our comets are thriving. This stuff saved our fish and we'll be keeping a bag on hand for any emergencies later on.
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Great product
By BigE on Jul 3, 2018
This product works great tank is crystal clear i have to check the numbers and see if it helped my nitrate problem. Fish seem to be swimming around just fine.
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Works fast
By FrostBite on Mar 22, 2018
I had a nitrate/nitrite problem in my aquarium and this worked quickly without any unexpected side effects. It is important to rinse before using to avoid a cloudy tank. I currently have it recharging in an aquarium salt solution.
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DO Not Use This Product
By Stephen on Feb 27, 2018
Awful stuff. Turned my entire aquarium like milk in a matter of seconds. And yes I did rinse the bag before putting it in the tank.
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Effective toxin remover
By Rick on Sep 15, 2017
Nitra-Zorb removes ammonia and nitrite and is very effective at lowering nitrates, which is also toxic at high levels. Be advised: after saturation, Nitra-Zorb must be soaked in a saline solution (4 tablespoons of aquarium salt in 8 ounces of water) for 2 hours to be recharged. Simply rinsing the bag will not recharge it.
