Jerry, The only reason I see of adding tap water is to save on RO water use. The fry will get very little if any minerals directly from the water. Their entire physiology is designed to keep water from entering. They get the minerals they need from their food. Mike Wise JerrCarol@aol.com wrote: > Anyhow their TDS was 50ppm at the time. If they go through with the hatch > then I let it come up some so the fry can get more of the minerals they need. > Still do water changes just smaller and maybe a little tap water or RO right. > > ------------------------------------------------------------------------- > 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. ------------------------------------------------------------------------- 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.