Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1)

Works well

I started using this right before I broke down and moved my tank to a different location in the house. I used about 4 gallons of water from the old tank, new planted substrate (Eco Complete) and some plants. I added this per the instructions and I havent had any spikes in ammonia. I can credit some of that to the old water, reusing the filter media(Aquaclear), the plants, and the live bacteria in the substrate, but I think it helped. Ive also been using it in my smaller tanks and noticed smaller than usual spikes in parameters. A good purchase, and Ill continue to use this and Prime.

So far so good

Doing research on this product I knew going into it this would be very much a hit or miss outcome. For me, it was a miss, but a mild miss so far. I recently set up a 125 gallon aquarium. On a Sunday I filled it and added the initial dose of Stability. On Wednesday I added a large number of live plants (rooted, non-rooted, stem, and floating) in addition to a school of 10 Harlequin Rasboras. On Friday I did a water test and thought all was well, 0 ppm Ammonia, 0 ppm Nitrite, and 5 ppm Nitrate which is the lowest reading the API liquid test will show. I added a school of 6 Peppered Corys. On Saturday I did the last final dose of Stability, giving a full 7 days of use. By Monday however things went backwards with 0.25 ppm Ammonia, and zero for the rest. Tuesday up to 0.5 ppm Ammonia and again zero on the rest. So for me, this product only worked while I was using it and didnt sustain long afterwards. The directions confirm a theory of mine. I believe it may contain a bacteria that does do the nitrogen cycle, but is not able to reproduce in the aquarium. Thus it establishes at a certain level of ammonia production, and slowly dies off. It is the only way I can explain why the instructions direct the continued use of this product with a monthly dose, and a dose whenever any fish are added. I can see adding a dose with new fish, but the monthly maintenance has to be there for a reason... Without that initial small reading of Nitrates I would of said this product didnt work at all and my live plants are the reason Ammonia has stayed low. Since I do have live plants in this tank (and a lot of them) I cant say definitively that this product worked or didnt work so Im afraid this review may not be all that helpful. I just wanted to share my experience and state that using this product and following the directions, I did not get a cycled aquarium meaning constant 0 ppm Ammonia and Nitrite.

I have used this product twice now to successfully cycle my 90 gallon tank, second time I was forced to do a fish-in cycle due to a medication I used that killed my cycle. I had 5 amano shrimp in my 90 gallon when ammonia was reading 0.5. I knew that I didnt have much time to fix it so I started dosing stability - by day 5 now ammonia is at 0 and nitrates are at 5. Does what it says and saved the lives of ALL 5 shrimp. I dosed it together with Prime. For comparison, I set up a 5 gallon hospital tank for the other group of 6 shrimp that I had, and for that I used the Tetra SafeSmart that promises to cycle a tank in 1 day. I was extremely skeptical but since I had lost my cycle I gave it a try. I got a used sponge filter from a pet store along with the SafeStart and my 5 gallon was, indeed, reading ammonia at 0, nitrites at 0, and nitrates at 5 when I woke up the next morning. I put 6 amano shrimp in there and 5 survived. All in all, both Tetra and Seachem did what the promised.

This product stabilized my aquarium very quickly.

My aquarium

Seachem is my go to product line for all my aquarium chemical needs. Its worth the extra money...just trust me

Easy to use Great for keeping my sons tank super clean Very affordable Will purchase again

I always have my seachem products stocked at all times. Ive in an emergency had to cycle a 60g Adult African Cichlid tank and had no casualties, thank goodness. One thing I do want to make clear, this will not instantly lower Ammonia, Nitrites or Nitrates. Stability helps by shortening the time it takes for your tank to cycle. In order to keep your readings down and your fish alive, ANY Fish, you must also use Prime. Prime does not rid your tank of Ammonia Nitrites or Nitrates but binds them so they are not toxic, for roughly 48hrs. So please do not buy this product thinking it will keep your fish alive. It is one of a combination of products that will or do.