How does dechlorinator work for fish tanks?

Question

I’ve been keeping fish for years and have always been told to put dechlorinator in the water to make it safe for fish, but what does dechlorinator actually do? The chlorine and chloramine can’t magically disappear, it has to go somewhere.

In: Chemistry

Answer 1

It contains a chemical that reacts with chlorine and chloramine to break it down into less harmful components.