Posted 2 Years, 10 Months ago JohnMartin Expert Boarder Posts: 117   Anyone have any opinions on using regular tea bags to acidify aquarium water and soften it. It seem viable to me. The administrator has disabled public write access. Posted 2 Years, 10 Months ago davidj Expert Boarder Posts: 120   Not sure, but there is loads of Caffeine in Tea - you might have some very lively fish! (or alernatively they'd be very dead) The administrator has disabled public write access.