What ever..... my pH in my planted tanks is way low..... i've had pH in my planted 55 gallon tank of 4.0... measured it in a planted 33 long once.. it was 4.2... My bare bottom tanks stay at around 6.0 for a pH..... all i know is my more difficult fish that really require a low pH and very soft water, go into my larger planted tanks. John ----------------------------------------------------------------------- -- 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