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

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.

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 Floridas 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 WEEKS DOSING SCHEDULE BASED ON YOUR TANKS VOLUME. Added 7 Zebra danios. These are hardy fish and can survive a newbies 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 doesnt need 3 capfuls for every WC. Thanks Stability!

Ive been using Seachem for years and they have never failed me. Their products are great and the stabilizer definitely does its job well. My fish are alive and healthy!

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 used Seachem Stability to successfully cycle 2 aquariums now, as well as to restore filter health after medicating or after very large water changes. This product has always worked well to establish or keep my bacterial filter strong and I will continue to keep a bottle on hand for situations in the future. I use it in conjunction with Seachems Prime to turn ammonia into a form Stabilitys bacteria can use. I really like how you cannot overdose it, so when in doubt you can just throw a capful in there then test a few hours later. I love all of Seachems products and use their products exclusively in both of my tanks with plants, invertebrates, and all sorts of freshwater fish with no ill effects.

Bought this because I was having trouble cycling my 3 gallon, heated/filtered betta tank (with him in it), and kept getting high ammonia levels, but no nitrites or nitrates, despite frequent partial water changes. And always ending up with cloudy water (despite using a different brand of water conditioner). I also bought Prime. I like how Stability can be used daily, and with Prime. My only complaint is that its hard to figure out exactly how many drops of Stability to use if you have a smaller tank, without doing tons of internet research. I ended up determining that I needed to use only 1.5 ml initially, then .75 ml for 7 days in my case, to help boost the good bacteria my tank needs in order to break down the ammonia. I use a 1ml syringe, but you could also use an eye dropper you can buy at any dollar store. If you use a dropper, a 3 gallon tank would use 10 drops per gallon initially, then 5 drops per gallon daily for 7 days (if youre in the same predicament as me). Then use it monthly or with each water change. Just be sure to shake the bottle well before use, and add the stability to the filter, not the general tank water. Apparently it works better that way, but Prime can be added to clean water changes OR directly to the tank if needed. Our betta seems to be tolerating both products well, and something has kept the ammonia level controlled finally. He seems to be happier now too, so Im happy. Since using both Seachem Prime and Seachem Stability, my tank is clearer than its EVER been, and I dont know which product is helping with that, but its wonderful!!

When I first set up my 20 gallon fish tank, Id done a lot of research about the nitrogen cycle. I decided to do a fishless cycle and thought it would take a couple of weeks to finish. I wound up waiting over 60 days, with no nitrates ever showing up. Then I got this stuff. In a matter of days after using according to package directions, the nitrogen cycle finished. When I set up a second tank, I paired this with Tetra SafeStart plus...and the tank cycled in a week! How I wish Id known about this and the value of it before I brought the aquarium home!

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.

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

I love my fish and was worried because the water was a bit yellow. This product helped stabilize the water.