advise needed for 3ft tank with cichlids & silver dollars

hi all,

need some advise here. is it necessary to add anti-chlorine for a tank with cichlids and silver dollars + some other smaller fishes? i have a 3ft tank with these 2 types of fishes and so far for the past 1-2 years they are doing fine w/o the anti-chlorine and both SDs and cichlids have spawned without adding salt, anti-chlorine etc - i basically use just tap water and some coral chips.

heard from some people that anti-chlorine should be added? is it really necessary?

thanks in advance

You've been doing that for so long, and your fishes are healthy.

Don't fix it if its not broken.
You have your own routine, stick to it.

hope nothing will go wrong. e concern came up cos just a week ago I shifted them all from a 2ft tank to a 3ft. wondering will that affect e water dynamics since more water is needed for 3ft.. now they don't really look friendly. they hide alot behind e filter quite abit. hope they settle down soon