I absolutely refuse to buy a R/O unit.... i wont ever use it even if you gave me the best one out there on the market...... Of course i dont need one..... nice to have great soft water right out of the tap..... 8-) but friends that did need one, never used straight R/O water.... not even in discus tanks. There should always be some sort of minerals in your water.... or it will crash on you..... and then its no fun.. Adirondack Johnny ----------------------------------------------------------------------- -- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto Trading at http://blox.dropship.org/mailman/listinfo/apisto_trader