Reverse Osmosis?

[kanttarelli]

I have been thinking what it is? People are talking about it and I don't have a glue what it means ;). What does it do...obviously a filtration system but I have never heard about it. How expensice is it and does it work in planted tank? What does it take away from water?

[Tristanyyz]

You might want to take a look at the waterworks section. Most of the answers you are looking for have been addressed in that section.
cheers
M

[Carol_Roberts]

It removes minerals (hardness) from the water

[kanttarelli]

ok..thanks! I don't think I need it then.. :)