Seachem Stability - For Freshwater and Marine Aquariums 250ml

We have had an aquarium in our house for almost 25 years, ranging from 20 gallons to 110 gallons, and have had both fresh and saltwater setups. About 15 years ago we purchased our first Boesemani Rainbow and got hooked on this type of fish! Brilliant coloration from freshwater fish; now we have Boesemani, Turquoise, Banded, Red, and Praecox rainbows that have grown to about three inches in length. We have moved many times in those years, mostly for work relocation. Each time we have to go through the process of setting up and establishing a new tank, and in those efforts this Seachem Stability product really helps out. Our current tank is a 72 gallon bow-front with a bio-ball based sump biological filtration system and also a pond pump that runs water through a UV light canister to manage algae. Through the first week we turned the UV light off and used Stability (and a few food flakes) to get things going. Within just a few days the ammonia spies came & went, and fish slowly began to be introduced to the tank. After a couple week we felt comfortable turning the UV light back on, and the full system was up and running. We do not use this product during regular weekly (5 gallon) or monthly (15 gallon) water exchanges, but we do use the Seachem Equilibrium product each and every time (

Love this product I have used it a long time. This bottle arrived with no lid just the tin seal on top so thats a bummer.

I trust Seachem Prime & Stability prepping for new fish and cycling new tanks and changing water. Easy to drop in the tank and it’s ok to “overdose” the water. Most importantly: healthy fish.

I was using other products to help me cycle my tank after a sudden ammonia spike. With other products it took me 3 weeks to cycle with my African dwarf frogs but I decided to take a shot at the stability and within 4 days it was fully cycled and no issues whatsoever. I will definitely purchase again.

Awesome product. Decided to try it out because I over-cleaned my tank gravel a bit and my ammonia spiked. I used it for 5 days and my test kit read 0 ammonia. Cant get better than that. This product is not a solution for long term problems. Your fish tank must be cycled without the use of anything (what I mean is you cant rely only on this product forever). This is definitely great if you want to start a new tank or give a boost to an existing tank.

Just in time to save my fish from ich but it didn’t come with a lid. Im a little disappointed

Excellent product. Can’t be without it. Bigger size greater value.

Awful, made water foggy, smelly.

Seems to be working great. Great reviews on the product

I opted for a fishless cycle on my tank; my ammonia was well over 4ppm, turning it into nitrates in less than a week.