I have a 180 Gallon planted tank with Discus.
I have just purchased a RO unit in the hope of helping me to get good pure water in the tank to help prevent Alage and give good water for the Discus.
What I would like to know is how should I prep my RO water?
I have been told by some that I should only use half RO water on my water changes as too much RO water can be bad as it removes all the goodies from the water as well. Also I think there are some mineral salts you can get that help replenish the goddies in to the RO water. If there is what would you all recommend?