













Seachem Stability - For Freshwater and Marine Aquariums 250ml
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Queen
> 3 dayI didnt really notice my tank cycling any quicker or fighting off new tank syndrome at all with this. The two tanks I used it in seemed to set up at about equal timing to all the tanks Ive done in the past.
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Customer
> 3 dayhelped cycle my tank
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Lauren
03-06-2025I used a whole bottle of this, adding a bit daily, and it did absolutely nothing to move my tanks cycle. Nothing else did either though. It took two months to cycle my tank despite trying various bottled bacteria
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S. Chang
> 3 dayLove this stuff. Tank became even more clear and lots of debris on tank bottom cleared up.
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steven joyce
Greater than one weekI swear this product does nothing. Do not buy this an expect to be able to add fish like the product advertises. You will end up with nothing but dead fish and a bottle of useless liquid. I love Seachem products but this one is worthless in my opinion.
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Josh
> 3 dayThis is the most effective bacterial additive I have used for aquariums. As long as you have dechlorinated water, and follow the directions on the bottle, your tank will be cycled in a fraction of the time it would take without treatment. You will be able to safely add livestock much sooner. It also helps keep the nitrogren cycle stable when doing large water changes/deep cleans on an established aquarium. As a side note, this is also the best smelling bacterial additive Ive come across. Instead of the overwhelming sulfur & rotten stench you typically find in these products, youll be greeted with a light garlic scent when opening the bottle.
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NaDo
> 3 daygood quality product..... works fast
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Elizabeth & Ante
> 3 dayHelps keep those nitrates and nitrites down but be patient as it takes time for the bacteria to grow in new tanks!
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Luis Gines
> 3 dayI do not have any official prove but I used Stability per instructions in a new 75 gallon tank and I had zero loss of fish via the infamous new tank syndrome. Fish are healthy and happy.
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Noah Steel
Greater than one weekWorth the cash. I was able to shave a lot of time off of setting up my tank because of this. I had the tank running for about a week before I added this. After three days of this, I took a chance and stocked my tank. That was a month ago and absolutely no fish loss. All of my inverts are living as well. As a previous reviewer said, you dont really have to add it after your tank is already operational, but I still add some after a major water change or deep cleaning of a filter. Might as well, since I still have most of the bottle left and the beneficial bacteria can help in case of a spike.