API POND STRESS COAT Pond Water Conditioner 1-Gallon Bottle

Great product

Don’t buy this . So upsetting.This kill my koi . Oh my god . 7 my beautiful is dead.

as expected

Fish are happier...!

I used this everytime I add water to our Pond.

Very good

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.

Great stuff. Works great in koi ponds and aquariums.

Can’t go wrong buying this by the gallon on Amazon. I’d go broke if I had to buy it at a pet shop.

Great product for my pond**