- Aug 19, 2009
- Reaction score
I'm in upstate NY and getting ready to shut system down and blow out the lines and clean filters etc. I'm not sure If I have to keep the system (waterfall) running until the water temp drops below 50 deg and I stop feeding fish or can I shut everything down now even though I'm still feeding them and water temp hovers around 53 - 55 deg? I guess I'm concerned about the oxygen situation with system shut down and them still eating while water temp stays about 50 deg.