Yeah, you're funny Jerry. I disappear off the face of the planet for just a little while and you take advantage of me..... ;P Peat's supposed to remove buffers. It has binding sites on it that will take calcium ions out of the water. Unless it's contaminated it shouldn't be bringing the pH up. Zack ------------------------------------------------------------------------- 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