If you have fish aquariums (I have three, like pups weren't enough to take care of LOL) Stress Coat is a must to have on hand. It is a water conditioner and fish conditioner in one. Five ml per 10 gallons of water will remove chlorine and neutralize chloramines, and it will also neutralize heavy metals. The cap on the 16 fl oz bottle is also a measuring cup, makes it very easy to get the dose right. Stress Coat also helps to repair damaged skin and fins and helps to replace the slime coating of your fish. When you are adding new fish to the tank, netting them can cause damage to the fins, so 10 ml of Stress Coat per 10 gallons of water will help heal their injuries. I have used Stress Coat to condition well water, and I have later used that water in both my freshwater tank and my two saltwater tanks (that is before the water is actually mixed with salt for the saltwater tanks). Stress Coat also comes in Marine formula, which is to reduce foaming in protein skimmers of saltwater tanks. That would probably be the best choice for saltwater tanks.
Stress Coat contains aloe vera, a natural way to help induce healing. It reduces electrolyte loss and promotes tissue regeneration in fish.
I have always liked this product and will be using it for as long as I have my fish tanks. I have purchased my Stress Coat at PetSolutions.com, but it is also available at Petsmart stores.