Hi Jerry, I'll come out of lurking for this one. Only way I know to get rid af calcium deposits is on an empty tank. Get a soft plastic scourer (no soap obviously) and some whire vinegar. Just tip a little vinegar in the empty tank and swab down the sides with the scourer. Rinse well and allow to dry. I only had the vinegar in the tank for a matter of minutes, and it got rid of the calcium deposits completely. Hope this helps. Regards, Ken. ----- Original Message ----- From: Jerry F. Kasey <kaseyjms@worldnet.att.net> To: Apisto List Digest <apisto@admin.listbox.com> Sent: Wednesday, May 03, 2000 7:31 PM Subject: Lime Deposits > Since I'm pledged with hard tapwater (dissolved calcium carbonate), over the > years some of my tanks have built up a lime deposit. I have tried products > for aquarium use to treat this but without success. Does anyone have any > suggestions as to what products, which are safe, I could use to remedy this > problem? > Thanks, > Jerry F. Kasey > kaseyjms@worldnet.att.net > > > > ------------------------------------------------------------------------- > 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. > Search http://altavista.digital.com for "Apistogramma Mailing List Archives"! > ------------------------------------------------------------------------- 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. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!