is distilled water good

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Postby hamburger » 2006-01-18 11:52

I was just wondering if there are any benefits to using distilled water? :D
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Postby Kev » 2006-01-18 12:04

Distilled water is (as far as I know) pure H<sub>2</sub>O. It is possible to add the essential nutrients back into the water, the product to do this can be bought at most LFS I think. Failing that, it is possible to mix the Distilled water with de-chlorinated tap water and this will replenish the nutrients in the same way.
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Postby KittyKat » 2006-01-18 13:07

my advice is avoid it unless you keep fish who are extremely sensitive to trace elements.

it is pure H<sub>2</sub>O and you would need to add back the desired trace elements and minerals if you want your fish to live. useful if you have copper in your water and want to keep rays etc. who are sensitive to it.
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Postby Mick e. t. » 2006-01-18 14:46

Distilled water, RO water, apart from what has already been mentioned, is good and requires no additives if used for topping up. It is, (and this is the bottom line), the only type of water that should be used for topping up. Explanation; water loss is, as we all are aware, caused through evaporation. Evaporation, which is the natural distillation of water will leave behind higher concentrations of all the elements that are in the water, (some good, some bad like nitrates and phosphates). In topping up with tap water you are increasing the density of all, which is not a good idea especially if your having a problem with tap water having high readings of nitrate and phosphate. So distilled water for topping up, yes, for general use, as already mentioned by others but, you have to get it right, or I should say equal to the water already in use. Of course if you are one of those who have the need to use RO or distilled water (Marines, delicate soft water fish) then you will understand where I coming from,
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Postby KittyKat » 2006-01-18 14:52

good posting mick
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Postby Surface » 2006-01-18 19:18

You go Mick!
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Postby hamburger » 2006-01-18 22:05

Mick e. t. wrote: Distilled water, RO water, apart from what has already been mentioned, is good and requires no additives if used for topping up. It is, (and this is the bottom line), the only type of water that should be used for topping up.

OK, Mick I get it. If the level of water in my tank has gone down say 1cm through evaporation then I should use RO water to put that cm back but I shouldn't use RO water for a water change. :vic:

Hmm what does the RO stand for :gulp:
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Postby Sam » 2006-01-18 22:09

Reverse Osmosis ^_^
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Postby KittyKat » 2006-01-18 22:14

<a href='http://allfishforums.com/index.php?showtopic=683' target='_blank'>see here for aquaria related abbreviations ;) </a>
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Postby hamburger » 2006-01-18 22:18

OK I'll re phrase that. Why is it called Reverse osmosis water? :blush:
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Postby Sam » 2006-01-18 22:23

Because osmosis is the name used when a solvent diffuses into a liquid i.e. Chlorine and Water. Reverse Osmosis (as it sounds) is the reversal of that process.
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Postby hamburger » 2006-01-18 22:28

Sam wrote: Because osmosis is the name used when a solvent diffuses into a liquid i.e. Chlorine and Water. Reverse Osmosis (as it sounds) is the reversal of that process.

Thank you. You know I must say I seem to learn something everyday on this site. :gulp:
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Postby Mick e. t. » 2006-01-18 22:34

Sam answered the what RO stands for. Of course you can use it for water changes but it must match or I could say be compatible with the water and fish you use it for. For instance Kev uses and most marine keepers have to use it but, they have to put back all the trace elements including salt. This also applies when using it for fresh water but not necessarily the salt. In topping up all you are doing is replacing the water which has evaporated and as a result left behind those trace elements it would of contained. So what your doing by topping up with RO water is replacing the water you have lost and not adding to the density of elements already there. (sounds like I'm repeating myself but with good intentions)
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Postby hamburger » 2006-01-18 22:37

Mick e. t. wrote: (sounds like I'm repeating myself but with good intentions)

You repeat all you want mate sometimes it takes a while to sink in! :gulp:
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Postby Mick e. t. » 2006-01-19 00:37

viel und dank hambuger, wie viel habst du DEUCHLAND gebliet, und ich glauber das du wissen mere than du habst gesagt.Ich gluaber :lol: Sorry cant spell check it.
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