API POND STRESS COAT Pond Water Conditioner 1-Gallon Bottle

This product works great in my Koi pond. When adding fresh water into the pond. I always add required amount of stress coat to the water.

Easy to use. No easy way to tell how much is left in the container.

Its what its supposed to be and came on time.

Fish are alive after use, so Im happy

Makes them perky and active. I actually think they look forward to the weekly treatments I give them. Ive about 800 gallons so using a cup a week makes a gallon last for a loong time.