Can't get us to agree on anything...:wtf:...while those folks are correct technically.....I'll still bet you 50 to 1 that if what you have in there now won't hold it.....then it ain't going to hold worth your time and energy even with tons of other crap. It's great to say you can just keep adjusting it....which you can.....but it takes it's toll on both you and your plants. Yep I don't like to haul water around either.....but I DO like plants that grow....not simply continually recover from shifts in the ph (btw....the EXACT issue I just got rid of when I dumped my hydroton.) That, however, is simply my opinion on the subject.