ORP is measured in mV below 450 mV in the system with the animals in theory, ozone leaves a residual at 450 mV...residual ozone would do to your animals what the residual disinfectants from your domestic/tap water would do (reason we dechlorinate) however, this is theoretical; if your critters are alive and well without signs of scratching or respiratory distress, your level of 460 mV is probably not above the theoretical 450 mV basically, if you are constantly feeding ozone into your system and you haven't had problems with animals being affected, you probably won't start having problems...unless you decrease the biomass of your system or feed less food (less organic reduction=higher mV levels all other things being equal) does your ORP analyzer/probe control the ozone feed rate in the tank (is it a feedback loop) or is it just measuring what is going on and you are manually adjusting your ozone generator? Dave -----Original Message----- From: Shane Clays [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 26, 2001 11:11 AM To: '[EMAIL PROTECTED]' Subject: ORP All, What do those of you who monitor your ORP try to keep it at? Mine is at about 460, and I don't know if that is good, bad or what. I have not found anything in my books to really help me out... TIA, Shane C. ________________________________________ LEAVING THE LIST ================ To stop receiving messages you will need to send a message to [EMAIL PROTECTED] with a command to remove you from the list. The list manager controls who belongs to the list. For example: -------------------------------------------------------------- From: John Doe <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: <not needed> UNSUBSCRIBE -------------------------------------------------------------- ________________________________________ LEAVING THE LIST ================ To stop receiving messages you will need to send a message to [EMAIL PROTECTED] with a command to remove you from the list. The list manager controls who belongs to the list. For example: -------------------------------------------------------------- From: John Doe <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: <not needed> UNSUBSCRIBE --------------------------------------------------------------
