Hey Johnny, what kind of monster plants do you have in your tank? If they can bring down pH, I want your plants! The plants in my tank drive up pH so quickly without fail. Some of them, namely najas, do reduce the hardness, though (but not pH.) You must be feeding the infamous blue stuff to your plants, too. Tomoko ----------------------------------------------------------------------- -- 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