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RO/DI unit question
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fishkeeper
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Joined: 09 Jul 2004

PostPosted: 2004.07.14(Wed)15:40    Post subject: RO/DI unit question Reply with quote

I am thinking about getting an RO/DI unit for my new reef tank because I know it will remove most of the impurities from tapwater. But will it also remove some of the important elements that a reef tank needs? (calcium and other trace elements)
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laith
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Joined: 02 Nov 2003
Location: Geneva, Switzerland

PostPosted: 2004.07.14(Wed)16:35    Post subject: Reply with quote

An RO unit will remove almost everything.

That's why you should never us pure RO water for fish; it is totally "dead" water, 99.9% H2O (or somewhere around there). I always mix it with tap water to get the carbonate hardness I want.

Laith
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dazednconfused
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Joined: 18 Aug 2004
Location: Mississauga ON & Halifax NS Canada

PostPosted: 2004.08.20(Fri)7:05    Post subject: Reply with quote

Can one use distilled water at all. I read somewhere that it can be used for top off's (at least I think I did read that, but who knows sometimes so much conflicting information floating around or information overload).

But can it be used on a larger scale ie: 10% water changes.

100g marine, fish, coral, live rock, live sand
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