API Stress Coat Water Conditioner 64 fl.oz, Pack of 2

its the only think what helped my pond

Great product at a great price. I treat City Chlorinated water for my 8000 gallon fish pond. Works perfectly.

Great product with great price/value

Great!

When I add (hose) water to pond

Although my inexpensive goldfish did not cost very much when purchased as tiny minnows at the pet store, now they are 9 inches in length, a wonderful golden-orange color, playful and always eager to be fed. I add the Stress Coat whenever Im adding water to the pond from our garden hose connected to the local utility. I highly recommend this product.

Fish told me they love it

Fish always do well with this product. Always add after water change. No issues.

Great product and excellent price

I recommend it if you water change your koi pond