I'm not certain of his, but I have an Ultima II 4000 and a 25 watt UV sterilizer for my 600+ gallon pond and do 20-30% water changes weekly.

And thank you for taking the time to assist with my question, especially after driving 600+ miles and attending the PB Con V. I appreciate your time. Now go to the Buzzard Bar and relax!

Last edited by roadwarriorsvt; 10/11/12 04:15 AM.