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

I try to do a water change once a week, and add Stability each time in the recommended amount. It really seems to help keep the chemistry stable.

I have been hooked on Seachem Stability for a long time but put it to the test when we moved from Utah to Mississippi. I wanted to setup my 9 aquariums as soon as possible so as soon as this was done I started to Use Stability plus a dose of Seachem Prime every 48 hours. I immediately started stocking the tanks with fish, everything from Flowerhorns to a large variety of Cichlids, Plekos,Severums, Parrot Flowerhorns and Blue Dolphins. I have not had even one loss during the cycling, I believe its critical to use Prime in conjunction with Stability, and I have a Pearl Flowerhorn coming in soon that I will cycle exactly the same in a 55 gallon bowfront that I just set up today. Kudos to Seachem for another great well researched product.

Im sure Seachem Stability works well to stabilize and maintain a biofilter as its advertised, but dont believe the hype that it will instantly cycle your biofilter. Sure, it can help get things off the ground by seeding the filter media with bacteria, but dont expect a colony of nitrifying bacteria in 24 hours or something ridiculous. When used with Seachem Prime you could probably reasonably perform a fish-in cycle in 7-10 days, but Im in the camp that believes a fishless cycle with ammonium chloride and live plants is ideal. Having said that I found significantly better results using Fritz TurboStart 700 to kick off my nitrogen cycle. Stability didnt get me any results after a week using their recommended loading dose and maintenance dose. Im somewhat certain it actually gave me a surface biofilm that Ive never experienced before when using it to start a nitrogen cycle. Once the cycle has kicked off, Ive diligently used Stability to maintain my biofilter by adding it with water changes and stocking new animals. Its never given me problems, but its honestly difficult to gauge how well it performs as theres no water test that can be done to see what kind of impact it makes to an already established tank. I suppose if you have a catastrophic crash in your biofilter or perhaps overload it you could measure its before-and-after performance with ammonia and nitrite tests, but thankfully I havent experienced anything like that. Ill continue to use Stability, Prime, and Pristine in maintenance doses as suggested because as far as I know, its working as intended, and making changes to a stable environment is a recipe for disaster. I just havent had luck with it kick-starting the nitrogen cycle. For that Id put my faith in Fritz TurboStart (or FritzZyme)

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!

Works well. My fish are happy.

So far so good

This stuff really does work. I had been cycling my 10 gal tank for about 3 weeks when I started it. My tests were just barely showing some nitrite. 8 days later, it was fully cycled. Please note, though, that this won’t work at all if you don’t combine it with an ammonia source. I used Dr. Tim’s pure ammonia to raise my tank to 4-5 ppm for cycling. If you have fish in your tank, that’ll also do it, but fish in cycling is not recommended. I think that some of the negative reviews are from people who thought that this product alone would cycle the tank. It won’t. This adds beneficial bacteria to your tank, but the bacteria will starve without ammonia as a food source. So make sure you have good ammonia levels in the tank before you add this.

I have read a lot of the reviews of problems people have had, while I dont agree with the claim of instant bio filter as in my 30+ years I have never seen or found any product that will actually create a full, stable cycle, only time and the miracles of nature, I do not believe any cycle that is rushed is stable enough to handle what is thrown at it! I do think Seachem would be wise to change that! There really is no shortcut to a proper cycled tank that could take up to 6 weeks! This stuff is really for the routine maintenance that it is more suited for like filter maintenance or gravel vacs anywhere or anytime you might loose Benifical Bacteria. I only use this during those times on my 90,135 & 220 gallon tanks and have had zero issues others have claimed which tells me there lack of understanding of the nitrogen cycle or what the product can really do! This product will no way cycle your tank it may help but too many factors contribute to a completed cycle. What this will do is help during routine maintenance to replace loss of BB as well as it could aid in any small spikes. I also will not deduct stars for bottles leaking and or damaged as others have done (guess they dont understand product reviews? If Seachem shipped then different story), as that has zero to do with the results of the product

Foolishly walking through a Walmart fish dept., I made the mistake of checking out their too large stock of forlorn Bettas. One “spoke” to me! I plopped down the $4.97 (or whatever!), for my new finny friend and then made my way to a big box pet store in search of his perfect home. Over $100 later, home we went! So started the saga of setting up an uncycled aquarium. Ammonia problems for weeks, bought the Prime initially, just to damper the ammonia. Then found the Seachem helpline, who held my hand-not REALLY, but almost!-through the next few weeks! They recommended that Stability would likely speed the process by adding the good bacteria. Between phone calls and multiple emails the water finally tested 0ppm for Ammonia yesterday. I can highly recommend the product and ESPECIALLY the members of the support team! Thank you!

Stability is a great product to help quickly start your cycle. Cycle of a tank goes down to a week unstead if 6-8 weeks. Go slow adding fish still as the cycle is still new. Great product