Dave, But, is saves on water changes. And the feed bill is exceptionally low. I have found that with the proper application of a standard shop implement (insert hammer here) that you can, in fact, cause the rocks to multiply. However, this does seem to play hob with the parental unit. Clay -----Original Message----- From: Sanford, Dave LHS-STAFF [mailto:Sanfordd@issaquah.wednet.edu] Sent: Tuesday, October 15, 2002 7:16 AM To: 'gsas-member@thekrib.com' Subject: Rocks ? Hey Clay, what's this about rock collection? I understand collecting rock dwelling cichlids but rocks, they can't even spawn! dave