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

I keep my tank’s water pristine - the nitrate never gets past 20ppm. For the last couple years that <20ppm goal required the water changes happen every 6 days. Part of my routine is testing and recording the nitrate level (pH & temperature too) before and after doing the water. A couple months ago I started adding a couple capfuls Stability at water change time since I had an open bottle to finish up with no new tanks to cycle. The before nitrate test started showing reduced ppm, low enough to make a water change unnecessary. I didn’t believe it so I tested again. Got the same low nitrate reading. . Three more days of testing and finally on day 9 I did a water change. . I still wasn’t convinced but the same thing happened again. And again... No change in the fish, nothing different about the feeding. Nitrate staying low for more days. So odd! Then it dawned on me the only thing different is the Stability. It started to kick in after two water changes. It is why the changes are 9-10 days apart now, even for 6 large fancy goldfish in 75 gallons! Thank you SeaChem, the beneficial bacteria in Stability are doing the heavy lifting instead of me!

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.

I ordered seachem prime and seachem stability at the same time to do a fishless cycle. It is now going on 3 months and after dosing with the stability everyday, dosing liquid ammonia when needed up to 3-4ppm( janitorial strength from ACE with no scents or additives), prime when adding new water, a heater bumped up to 84 degrees, having live plants and a few old filters and same baggies of gravel from an established tank I still have NO progress and my Ammonia will not budge. It is completely bewildering. I have a 29g tank and have followed the instructions- I have nearly finished the whole giant bottle of Stability I received with no progress in my cycle at all. I have reached out to customer service with SeaChem and they have not been helpful- they just told me it was because I have 2 sponge filters instead of a hang on the back filter which is total crap- you should be able to cycle a tank with any kind of filter so long as it is the right size for the tank.. ( although they are very nice). I do not recommend this product at all. Maybe I got a bad batch but I am pretty disappointed and really feel like I have wasted my time and money.

So far so good

Works well

What’s not to like??

I used this in combination with Prime to do an in fish cycle and it worked great. It gives you instructions on the bottle - to use for 7 days or something like that - but I just kept going with it while I slowly added fish and it worked great. I started with a freshly planted tank and all the levels were zeroed out (Ammonia, Nitrite, Nitrate). I would dose Prime and Stability and a pinch of fish food daily in the morning and run water tests at night. The logic is, Prime would safely neutralize any Ammonia for 24 hours (while keeping it available for beneficial bacteria as a food source) and Stability would ensure theres enough beneficial bacteria to consume the available Ammonia and Nitrite. After a day or two, I added a few Guppies for their hardiness, hungry appetites, and large bioloads. In the meantime, I continued dosing Prime and Stability daily. 25% water change after a week with levels still good with some traces of Nitrate. A few Corydoras added to minimize leftover food from decomposing. Still dosing Prime and Stability daily. Fish thriving, plants thriving, and trace amounts of Nitrate. Kept dosing, but in somewhat smaller amounts, only using the recommended dose when adding fish. Months in, all is well with no deaths and a perfectly cycled tank. During the whole process I never saw any Ammonia or Nitrites spikes, even when adding fish. The Prime would keep Ammonia in check. And dosing Stability would make sure theres enough beneficial bacteria to handle whatever levels are in the tank, even if it fluctuates. Great product! Definitely recommend as I do most Seachem products.

I use this when I do my half water Change. Keeps my fish healthy along side with the chlorine removal

It works. Used it to start a brand new fluval edge 12 gal with sand substrate. Water treated with Prime, added a handful of live plants and started the 7 day dosing. On day 2 added a handful of tetras and a couple cories. Add a few more after 7 days. Throughout the 7-day period, and over the 5 months since, I NEVER detected ammonia or nitrites (0ppm) and have seen low nitrates (~10 ppm) using API kits (both test tubes & strips, repeatedly as I had a hard time believing the results). Virtually instant cycling, which I did not think was possible but I now attribute to using this product in conjunction with LIVE PLANTS, which gobble up ammonia and nitrates. Cant stress enough how much better a planted aquarium is for maintaining water quality and healthy fish. Ditch those plastic plants, try a few of the more common aquatic plants until you find ones that do well in your particular setup. Yes its a bit more work --- I follow a regular dosing schedule using Seachem Excel (no CO2 injection) and Seachem Fertilizers (Flourish, Nitrogen, Potassium, Phosphorous) and have beautiful thriving plants and healthy fish (and now shrimp, too)

My stepson got a 55 gallon tank for christmas, and I had been trying to get it to cycle for some time before he moved his fish into it, using added ammonia. No luck, so the fish were moved over and we used Seachem Prime (another exellent product) and continuous water changes to keep the ammonia levels down. Two weeks and a couple of bacteria products later, we were still getting 2ppm ammonia and 0 nitrites and nitrates. I ended up getting Stability and the same day the ammonia went down to .25ppm and we finally got readings on the nitrites and nitrates. It has worked very well for us. WORD OF CAUTION: If you get this or any other live bacteria product, make sure you do one day shipping (at least if it is summer or winter). The temperature extremes during average shipping can kill off the bacteria, leading to this being as useful as a bottle of water.