What does water conditioner do?
The main purpose of water conditioners is to break down chlorine and chloramine and make water safe for fish to inhabit. Almost all dechlorinators contain sodium thiosulfate, which reacts to chlorine and chloramine to form harmless byproducts. Sodium thiosulfate looks like rock salt or white powder, and it is often dissolved in water to create liquid dechlorinators. Some water conditioners contain pH buffers, aloe vera to help heal the fish’s slime coats, or extra additives.
The Aquarium Co-Op Easy Dechlorinator detoxifies chlorine, chloramine, and heavy metals. It also contains a chemical binder that renders ammonia, nitrite, and nitrate non-toxic for up to 24 hours, allowing your filtration to break down these compounds even further. It does not have any pH buffers, aloe vera, or extra additives that alter the water chemistry.
For more information, read the full article on dechlorinators.