Water Purifier And De-chlorinator?

[Duck and Dive]

Hi

I purify my tap water and add De-chlorinator and have done for 2 years. Do I really need to add the De-chlorinator?

Thanks

D&D

 

[Esfa]

nope, if you're only doing small water changes, the chlorine really wont harm your filter bacteria or your fish.

obviously if you are are going over 75% water change, then you will need to use dechlorinator.