David when you say 32 years of tanks and only one that has ever had gravel. Do you go bare bottom on all your tanks then. Why? Just out of curiosity, not being nosey. I only go bare bottom on fry rearing tanks. This is only for ease of keeping clean. John Wubbolt ------------------------------------------------------------------------- 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"!