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

Works well. My fish are happy.

Ive been using this product for a while, its pretty good stuff but you need to take into consideration that the instructions on the bottle are not going to have your tank cycled in 7 days. The way to use Stability is along with Seachem Prime water conditioner, and water changes. You want to dose both of these daily while you fish-in cycle your aquarium. The formula that I have been doing is as follows. If you have less than 1 ppm ammonia or nitrite - dose Stability and Prime, wait 24 hours and check again If you have more than 1 ppm ammonia or nitrite- do atleast 50% water change, sometimes 75% is best depending on how high your ammonia and nitrite is. Then dose Stability and Prime. The key to cycling your tank and keeping your fish healthy is to keep ammonia and nitrite below 1 ppm, by using Prime Water Conditioner because it will bind these into non toxic forms for 24 hours. This also allows your growing bed of bacteria to have something to eat on. I am currently cycling a 20 gallon long tank, with one Oranda Goldfish. They are large waste producers, so I normally double my prime dosage and quadruple my stability dosage just to be on the safe side. Amazon by far has the best price for the 500ml bottles!

I was having a hard time getting my tank to cycle before the fish I ordered arrived in the mail. Because I was running out of time I ordered this product, started it on a Tuesday, put my fish in on a Saturday, and was done by the Monday. I just tested my water and have no ammonia or nitrates and between 5 and 10 ppm nitrates. You need to use the Prime with it every other day during the cycle (1 mL per 10 gallons) to bind any ammonia to make the tank safe for the fish while the tank is getting started. I would not have known this if I had not called Seachem support. Seachem support is AMAZING. So helpful. They explained how the products worked together and answered every single one of my questions, which there were many as this was my first fish. I recommend this product, but more I recommend this brand.