Seachem Stability - For Freshwater and Marine Aquariums 250ml

(593 Reviews)

Price
$9.38

Quantity
(10000 available )

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316 Ratings
245
21
17
5
28
Reviews
  • Bonita W.

    > 3 day

    Excellent product. Can’t be without it. Bigger size greater value.

  • Hegemon

    > 3 day

    I always cycle a new tank using Stability and ammonium chloride. The product works every time and has always taken around two weeks for me.

  • Frotzie

    > 3 day

    I feel like Sechem products saved my fish. Between the stability and the prime, my tank stays in good shape and my fish appear healthy. I would recommend this product to anyone with an aquarium.

  • Amber

    > 3 day

    This product is great at preventing new tank syndrome. We seeded our new aquarium with media from another tank but still wanted to use stability as a backup. All of our fish are alive and well so this product will always be used on our new aquariums. All fish keepers need this.

  • SoCalSurfer

    > 3 day

    Stability has helped me quickly and reliably cycle new tanks. This stuff is great - use as directed and when adding new fish or doing major cleanings. Thank you Seachem for making doing cycles easy!

  • Tex

    09-06-2025

    I assumed that when I ordered this that it would come with a lid for the bottle. Bad assumption! It came in the mail today, and when I opened the box, there was no lid on the bottle. The seal has not been broken so the contents arent exposed but I guess its on me to find a container to put the contents in so that it doesnt spill all over the place once the bottle is opened.

  • Jeff Holliday

    > 3 day

    These are the best aquarium products you can buy. The company has a reputation for being innovative and pioneering multiple aquatic compounds. Everything from stability, to equilibrium, to the food itself, I only trust seachem. If you care about your fish, buy the whole line of these products

  • Gecko chic

    > 3 day

    This stuff is amazing about to buy more

  • ally

    > 3 day

    About two weeks ago I bought a 20 gal. long to add more Betta fish to my growing collection. I had it up and running with only an air pump for 3 days with two of my Sarasa goldfish, just to get a good amount of ammonia going. Once they had enough ammonia in the water, I removed them and put them back in their tank and started setting up the decorations, sand, heater, filter, etc. at this point my water parameters were, as you can imagine, off the charts. I started dosing my aquarium with SeaChem Stability as the instructions said, however I added an extra half a cap every night before bed. half way through the SeaChem treatment, I added two of my bettas into the tank (divided) to see how they reacted to the water. They seem to really love their new home and here we are 9 days and one 50% water change later, my tank parameters are perfect, no fin rot or any diseases, no stressed fish. Ill definitely be using Seachem more often, and Id highly recommend this product to anyone who wants fish but doesnt want to wait for months it to cycle completely.

  • Lactosefighter

    > 3 day

    I previously rated this item with one star because it didnt seem to be helping my ammonia problem. Only have one fish in my saltwater tank and I had been using this product daily for a month, with no measurable results. Still having slow ammonia building up requiring weekly partial water changes. No measurable nitrates or nitrites, so no biological filtration system established. I contacted Seachem support and got a response the same day with excellent advice. The product works great.

Stability® will rapidly and safely establish the aquarium biofilter 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, nitrite, 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 over use. Stability® is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management. The bacteria used in competing products are inherently unstable. The conditions necessary for their growth and development fall into a very narrow range of temperatures, pH, organic loads, etc. When any of these parameters are not strictly within the proper range, the bacterial culture quickly crashes and dies. Stability® is not limited this way. The necessary conditions for the growth of Stability"s™ bacteria strains encompass a very broad range. When other bacteria begin to die off (usually from high organic loads caused by the undetected death of an organism), Stability™ simply becomes more effective.

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