At this time it's a pair of Blue Rams, and then a breeding group of Geophageus red head tapajos.
You don't add any minerals back into your RO? Just straight 100%?
I've got my RO unit arriving today, and I did not add on the DI canister going that it'd leave some minerals behind, so if that works that will be far simpler than trying to find an RO/Tap water mix!
I know the Rams want soft water, but what about the Geo's?