chickenlady
New Member

Please could someone tell me what is this R O water that I see mentioned? (sorry if this is a dumb question).
Reverse Osmosis - Water filtered to remove minerals & impurities. It can't be used in it's pure state & has to have buffers added or, more usually for freswater tanks, it is used to dilute hard tapwter.![]()
Please could someone tell me what is this R O water that I see mentioned? (sorry if this is a dumb question).