RO water-safe water for fish?

[specialone0812]

http://www.purewaterclub.com/index-ebay.html

have anyone used this product?
It seems like a great product with a saving aspect for tight budget now.
it can Removes 99% of all Sodium, aluminum, lead, copper, arsenic, mercury, calcium, phosphate, iron, magnesium, zinc, chloride
, nitrate, silicate, cyanide, sulphide, nickel, silver, bicarbonate, manganese, ammonium, barium, chromium and Phosphates.i dont know how it work, just order one and it will work in about 14days.Hope it works for me and my discus tank.
if i used this, i would not need to add any dichloride or prime into my water???/Need some advice. or i have to wait until this system comes, get some water from outcoming and test it.

[Zulaab]

If you use an RO machine, you will need to some items to add to the water.
You said discus tank here are the products you need to pick up. This is if you use 100% RO water.

Discus buffer

http://www.seachem.com/Products/product_pages/DiscusBuffer.html

This will add enough of a buffer for your discus, so you dont have a sudden change in pH which would be bad.

AND !!!
Discus Trace

http://www.seachem.com/Products/product_pages/DiscusTrace.html

This will return your trace elements iron, salts, calcium etc back into the water that RO machine will remove.

[specialone0812]

if i fill slowly about 30% ro water back to my tank after doing water change, i wont need Buffer addition.
for the Discus trace. does it matter a lot? i saw one breeder using Ro water and he's successful with just RO water on his discus.
Thanks for advice. i may have to try and learn step by step .

[Zulaab]

I suppose you dont have to have it there.. except if you want your discus to feel their absolutely best I would use it. I would do all of the water changes, by filling a barrel and with RO water, add the additives in there for barrel size and then refill the tank after removing the water you want to take out.
What is your current pH ? 7.5-8.4 (ie Houston tap water) ?

Yeah you will need to do water changes once a week no more than 20% at a time allowing the water slowly to make it to 7.0pH. I would then run 100% RO and add Discus Trace... Then start using the buffer to bring yourself down below pH 6.5 which the discus should love.

Now if the discus are born in Houston tap water there is no need to do anything except soften the water some because they are used to the hard water.. now breeding you will need to get someone else involved.. because I am for sure no brain for breeding discus.

[wesleydnunder]

Tony, straight RO water is not good for your fish. It will eventually kill your fish from severe osmoregulation distress. Even in the wild, the water contains 70 ppm or more of total dissolved solids. Mixing RO is the better idea if you feel the need to use RO. The mixes that Jesper suggested will need to be used if you go straght RO, but shouldn't be necessary if you mix 70% RO with 30% tap.

Mark

[specialone0812]

yeah. i see what Jesper s saying. straight RO is not a good idea. maybe a mix between RO and Tap wate will work like Mark Suggested.
about breeding, i heard that straight RO water make the discus eggs easier to hatch, but when they grow up, they will be hard to transfer to Tap water. you need to drip water very slow for a long time to make them adapted to your Tap water.