Yeah, next meeting I'll see if he can tell me what it is they use to measure the water with. I was actually offered a job there cleaning maintaining 150 fish tanks in the lab. Both fresh and Saltwater (which I know nothing about) sounded too much like work to me. I did that for 25plus yrs plus I don't want my fish to suffer because of it. ------------------------------------------------------------------------- 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. ------------------------------------------------------------------------- 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