No Need for this Ira... you should know better.
Sexual Reference Removed
Mod
Bill.
Have the tank somewhere around 22°C The angels will be a little cooler than perfect, but will be fine. The goldfish will be a little warmer than perfect, but also should be fine. I've forgotten to plug my heater in one of my tanks after a water change for 3 weeks over winter and only noticed when I went to do a long overdue water change that it was freezing cold. Tank was at 16°. No deaths, no sickness, everyone was fine. Fish don't drop dead the instant the temp gets 1 degree away from their perfect temp.