API Tap Water Conditioner

Written by Kmuda. Posted in Dechlorinators



This super-strength water conditioner instantly removes chlorine and detoxifies heavy metals in tap water. Use when setting up a new aquarium or adding water. Safe for all aquatic life. To remove chlorine and detoxify heavy metals, use one teaspoon per 100 gallons of water. To detoxify chloramine, 1 tsp treats approximately 40 gallons. 16 oz treats 9,600 gallons.

API Tap Water Conditioner Review

by Kmuda


There are many water conditioners on the market but in my view there are only two worth considering. API Tap Water Conditioner is one of these two. Let's face it, all conditioners, for the most part, perform the same functions, some claim to do more than they can do, some claim to do things that really are not required and provide no real benefit, and some can be outright dangerous.

But when you get right down to it, provided you are not registering ammonia (chloramine) in your tap water, there are only two things we need from a water conditioner.
The primary function we need from a water conditioner is to act as a dechlorinator. The second function that should exist in all water conditioners is the ability to bind heavy metals. If you don't think that "heavy metal" binding applies to you, think again. If your house is old, the pipes can be leaching everything from iron, to copper, to aluminum, to even arsenic. Have you heard about the "crumbling infrastructure" in America. Part of that infrastructure is your city's water system, which will also contain old pipes and equipment capable of leaching heavy metals. Even if you are on well water and chlorine is not an issue, you need a water conditioner that binds heavy metals.

API Tap Water Conditioner performs these two necessary functions as well as any conditioner available to us, if not better. What makes API Tap Water Conditioner my dechlorinator of choice is that it is more economical than any other conditioner I've found, achieved by being significantly more concentrated than competing products. While most conditioners require 1 teaspoon per 10 gallons, API Tap Water Conditioner is 1 teaspoon per 100 gallons (Prime is 1 teaspoon per 50 gallons.) In addition to being very concentrated, the per bottle cost of API Tap Water Conditioner is lower than its competitors because the API product only does what we truly need, acts as a dechlorinator and binds heavy metals.

If you are registering ammonia in your tap water (likely an indication of chloramine) SeaChem Prime should be your choice for a “complete conditioner”. API Tap Water Conditioner does not detoxify ammonia.

As for all other claims of higher priced conditioners, these are all functions which basically none of us require. A properly maintained tank should not require the addition of “essential ions” via our water conditioner (please define these ions… can anyone?). “Electrolytes” is just a name for salts, vitamins are not stable when introduced into the water, aloe vera works by preventing wounds from drying out (not a problem when you are permanently submerged in water), other beneficial aspects of aloe vera are almost impossible to preserve in a bottle, aloe vera is not stable in water, and our fish should need no assistance in producing slime coat.

API Tap Water Conditioner is the primary dechlorinator for my multitude of tanks. Why? It works, it's economical, and it only does what really needs to be done.

For those instances where a need exists to detoxify ammonia or in the instance of my Oscar tank, for mostly irrational reasons, I use SeaChem Prime


  • Does the Right Job: Seriously folks, as an industry, we dump tons of money into water conditioners thinking we are somehow benefiting our fish by going the extra mile in selecting the "best conditioner" when in reality, all of those additional additives in the "complete conditioners" are more marketing than beneficial. They simply are not needed or really serve no function beyond separating you from your cash. API Tap Water Conditioner does the two things all of us require in a conditioner, dechlorinates and binds heavy metals. Unless you're registering ammonia in your tap water, this is all you need.
  • Made by API (Aquarium Pharmaceuticals): API is a trustworthy company with a history of manufacturing quality products.


  • Does not Detoxify Ammonia: API Tap Water Conditioner is a straight up dechlorinator. If you are registering ammonia, this is not the product for you unless you wish to add API Ammo-Lock to the mix. But my recommendation would be SeaChem Prime. 
  • Somewhat Misleading Advertisement: Claims to "detoxify chloramine". I suppose, legally, this is correct. Because it breaks the chlorine/ammonia bond, so "chloramine" no longer exists. But what is left behind is toxic ammonia (see above).