I got an end of year deal on two big bottles of pond water conditioner. It has the same statement on it as aquarium water conditioner: it removes chlorine, heavy metals, etc. and makes tap water safe for your pond fish including adding natural slime coat. Sounds like the same stuff used for aquarium water changes though in a stronger dosage. I'm wondering if anyone else has ever used it and also wanting suggestions on how I can dilute it because the dosage is stronger.