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Seachem

Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums 2L / 67.6 oz

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Size: 2 L/ 67.6 fl. oz.


Color: No Color


Features

  • Rapidly And Safely Establishes The Aquarium Bio filter In Freshwater And Marine Systems
  • Prevents New Tank Syndrome, The Number One Cause Of Fish Death
  • Contains a synergistic blend of aerobic anaerobic and facultative bacteria which facilitate the breakdown of waste organics
  • The Bacteria Employed By Stability Are Consulter Fixing And Will Not Produce Toxic Hydrogen Sulfide
  • Completely Harmless To All Aquatic Organisms As Well As Aquatic Plants Thus There Is No Danger Of Overuse

Description

Stability will rapidly and safely establish the aquarium bio filter in freshwater and marine systems, thereby preventing the 1 cause of fish death: new tank syndrome. Stability is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, and nitrate. The bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of overuse. Stability is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management. New Tank Stabilization System Rapid & Safe Establishment of Bio-Filter Prevent New Tank Syndrome Freshwater & Marine

Brand: Seachem


Liquid Volume: 2 Milliliters


Item Weight: 1.18 Kilograms


Item Form: Liquid


Target Species: Fish


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 9.8 x 4.6 x 4.6 inches; 2.6 Pounds


Item model number ‏ : ‎ 001064


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ June 15, 2004


Manufacturer ‏ : ‎ Seachem Laboratories, Inc.


Best Sellers Rank: #2,060 in Pet Supplies (See Top 100 in Pet Supplies) #71 in Aquarium Cleaners


#71 in Aquarium Cleaners:


Customer Reviews: 4.8 4.8 out of 5 stars 12,362 ratings


Item Weight: 2.6 pounds


Department: Unisex-Adult


Manufacturer: Seachem Laboratories, Inc.


Item model number: 001064


Date First Available: June 15, 2004


Item Package Dimensions L x W x H: 9.72 x 4.84 x 4.57 inches


Item Dimensions LxWxH: 9.8 x 4.6 x 4.6 inches


Item Weight: 1.18 Kilograms


Brand Name: Seachem


Target Audience Keyword: fish


Directions: Use 1 capful (5 mL) for each 40 L (10 gallons*) on the first day with a new aquarium. Then use 1 capful for each 80 L (20 gallons*) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum biofilter performance use 1 capful for each 40 L (10 gallons*) once a month or with each water change and whenever introducing new fish or whenever medicating an aquarium.


Warranty Description: Warranty


Model Name: Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums 2L / 67.6 oz


Color: No Color


Size: 2 L/ 67.6 fl. oz.


Material: Plastic


Age Range Description: All Life Stages


Number of Items: 1


Style: Stabilizer


Included Components: Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums 2L / 67.6 oz


Specific Uses for Product: Improving Aquarium Conditions


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • Best for cycling!
Size: 500 ml Color: clear
Best product I've ever used to cycle a tank quickly! Highly recommend!
Reviewed in the United States on July 20, 2025 by Scarecrow2021
    • It keeps my nitrite in range.
Size: 2 L/ 67.6 fl. oz. Color: No Color
It works exclent keeping my aquarium in exclent shape.
Reviewed in the United States on July 21, 2025 by Patrick H. Van Cleave
    • Happy
Size: 500 ml Color: clear
Works as described. Happy with the purchase.
Reviewed in the United States on July 28, 2025 by Metroman
    • This product worked for me
Size: 500 ml Color: clear
Stability helped me start and establish a brand new 55G tall from scratch with only one fish departing to the Golden Pond in the Sky (loach swam up the intake into the filter impeller...messy). From day one I did daily testing with the API kit and made an Excel spreadsheet of the data. There were very small, irregular ammonia spikes at the 2nd/3rd week, but not into the "danger" zone and slowly decreased to 0ppm by the end of the 4th week. Nitrites and nitrates increased from the 3rd week and then hovered at a "very acceptable" range below danger zone and then gradually decreased to ~0 ppm for nitrites and ~20ppm for nitrates by the 5th/6th week. The results I got from the test kit were evaluated against a U of Florida's chart (I am a bio major) of Total Ammonia Nitrogen Toxicity (using pH and water temperature as the other parameters), and were in the range that is deemed not dangerous to FW fish for a short term period. With the results of these API test and my personal experience, I would definitely recommend and have been using Seachem Stability as a "jump start" product to establish the important biological filter in a FW aquarium or to boost or supplement the already existing bio filter in an established tank. For those interested about my experience, see below for in depth details. Products used: -Seachem Stability -Seachem Prime -API FW Master Test Kit 1st week: IMPORTANT: FOLLOW THE DIRECTIONS FOR THE FIRST WEEK'S DOSING SCHEDULE BASED ON YOUR TANK'S VOLUME. Added 7 Zebra danios. These are hardy fish and can survive a newbie's foray into fishkeeping and hopefully any mistakes I make. First day: One capful( 5mL) for every 10G of NEW WATER, so 5 capfuls. Days 2-7: One capful for every 20G of water, so ~3 capfuls EVERYDAY. Added 4 black Java loaches/khuli loaches on day 3. Note: Directions says you can add fish/inverts immediately and at any time as long as you follow the all-important dosing schedule above for the FIRST week only. NOTE: After first week, one capful for every 20G once a month, or with each water change, or introducing new fish, or medicating. 2nd week: Added Dwarf gourami and 3 Albino cories. Did 25% water change with Prime, then dosed with 3 capful of Stability, which is the dose for ~60G. 3rd week: Added Bristlenose pleco. Did 25% WC with Prime, then dosed with 3 capful of Stability. 4th week: Added 3 more Albino cories. Added 1teaspoon/10G API Aquarium salt to counter increasing ammonia, nitrites and nitrate spikes. 5th week: Added 5 more loaches. Did 25% WC with Prime, then dosed with 3 capful of Stability. 6th week: Added 2 Amano shrimps. Did 25% WC with Prime, then dosed with 3 capful of Stability. 4 months later: 3 Bamboo shrimps, 2 Amano shrimps, 9 Loaches, 6 Cories, Dwarf gourami, 7 Danios, BN pleco, plants. All fish/inverts growing and healthy. I now only dose 1 capful of Stability with each 25% WC, as my biofilter is now well established and API tests show it doesn't need 3 capfuls for every WC. Thanks Stability! ... show more
Reviewed in the United States on September 19, 2013 by Johnny
    • Great item
Size: 500 ml Color: clear
Why did you pick this product vs others?: Does what it’s suppose to
Reviewed in the United States on July 8, 2025 by Adrian Garcia
    • Excelente
Size: 500 ml Color: clear
Excelente
Reviewed in the United States on June 5, 2025 by Felix Diaz
    • Seachem makes the best beneficial bacteria in a bottle
Size: 2 L/ 67.6 fl. oz. Color: No Color
I use seachem products on all of my aquariums, this is the best value for your money when it comes to water, cleanliness and water clarity. The size of this product helps with large aquariums and the smell is not that bad.
Reviewed in the United States on May 31, 2025 by Kelly Bunch
    • Greatly speeds up the cycle
Size: 500 ml Color: clear
I used Stability to kickstart the cycle on a new tank and it worked faster than I expected. I dosed it daily for the first week like the bottle says, and by day 5 or 6 ammonia and nitrites were already dropping. I was also using bottled ammonia and keeping things consistent, but I do think this made a big difference. Water stayed clear the whole time and there was no weird smell or cloudiness. I’ve used a few other bacteria starters before and this one seems to actually do something right away. Might not be “instant” like some people say, but it definitely sped things up. I’d use it again for sure. ... show more
Reviewed in the United States on June 8, 2025 by Ray C.

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