Cobalt Aquatics Total Nitrate, Phosphate & Metal Removing Resin

By Cobalt Aquatics
Rated 0 out of 5 stars


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$22.98Chewy Price
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About This Item


  • Removes nitrite, nitrate, phosphate and metals to help keep the water environment healthy.
  • Ion-exchanging, highly durable resin is rechargeable and can be used multiple times.
  • Great for freshwater and saltwater aquariums.
  • Does not release the collected pollutants into the water when exhausted.
  • Available in multiple sizes—7.5-ounce for 125-gallons, 12.5-ounce for 225-gallons and 20-ounce for 400 gallons.

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Fish TypeKoi & Pond Fish, Marine Fish, Tropical Freshwater, N/ATropical Freshwater, N/AKoi & Pond Fish, Marine Fish, Tropical Freshwater, N/AGoldfish, Tropical FreshwaterKoi & Pond Fish, Marine Fish, Tropical Freshwater, N/A
Aquarium TypeFreshwaterFreshwaterFreshwaterFreshwaterFreshwater

Questions & Answers

7 Customer Questions

If placed in a 200 micron bag and used in a box power filter, would it still work effectively?
Answer by ChewyApr 23, 2021
The filter media can be placed in the bag inside a box power filter if there is enough room to do so. However, if components from the filter need to be removed, it may affect the filtration ability of the unit.

Does this work for saltwater tanks?
Answer by ChewyFeb 14, 2021
This is suitable for freshwater and saltwater aquariums.

is it safe to use with crayfish
Answer by ChewyJan 13, 2021
This product is ideal for tanks with heavy bioload, turtles, goldfish and other messy livestock. It is suitable for tanks with elevated phosphate and nitrate levels. Typically this means tanks that aren't cleaned/water changed as often or have been neglected for a while.

what do you mean by RECHARGE up to 4 times?
Answer by ChewyJan 07, 2022
This can be regenerated/re-used up to 6 times. To do so, soak Total Nitrate in a concentrated brine solution (4 cups non-iodized salt per gallon for each cup or 250 milliliters of resin) or a 1:4 bleach:water mix for a minimum of 8 hours. Once regenerated, rinse thoroughly in dechlorinated tap or RO/DI water prior to resuming use.

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