Thanks for the reply. I am not really spawing anything right now, but I want to keep my options open. I guess that to really get it right I should get each salt as a seperate and mix in the proper ratio. Any suggestions on where I might find such material? Espically some of the smaller and more exotic salts, not the simple Ca and Mg stuff. whomareyou?whomareyou?whomareyou?whomareyou?whomareyou?whomareyou?whomarey h o o Mike Nielsen u m Department of Geography THE OPTIMIST BELIEVES WE LIVE IN ? a Harvill Bldg Box #2 THE BEST OF ALL POSSIBLE WORLDS; w r Tucson, AZ 85721 THE PESSIMIST FEARS THIS IS SO h e mnielsen@u.arizona.edu o y m ou?whomareyou?whomareyou?whomareyou?whomareyou?whomareyou?whomareyou?whom? ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!