Aqueon Fish Tank Water Conditioner 16 ounces 2.5" x 2.5" x 8.4"

This product works very well in my two aquariums. I am able to use a python to make water changes and
then put in the proper amount of the product. Also use if I introduce new fish or snails.

Excellent after I have changed my water in my tank. It appears to stabilize the water in no time and I have never had a problem.

Great stuff have used it for years Seems to work really well the fish live. Use it every time I add water, and also a few times I’ve had it when I haven’t been able to clean the tank when it should be. Always re-order from it’s cheaper than the pet store

seems to have worked fine; fish still alive! i use it anytime i change the water. the bottle size is larger than what you’d get at the store. recommended!

Works great on our hard, chlorinated water, and our goldfish seem OK.

This conditioner is concentrated--using only 5ml per 10 gallons. So, if you've got a smaller tank like I do, this 16oz bottle could last decades. It's a gentle formula, even if you put too much in. Conditioner for small Betta tanks is way more dilute, and at first we used 10x too much, but the fish seemed OK with it.