When to change purigen bag?

Mako72

New member
Hello, I added my purigen bag six months ago...the color is pale green...light brown....I don't want to bleach it due to not wanting to play around with chlorine and bleach...should I change it out now...or is still good...Thank you for any input.
 
Supposed to be replaced or recharged when the appearance signifigantly darkens to a dark brown - black.
 
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