maintaining water temperature in jars

[Jess]

After pulling down a heap of tanks in my fish room after christmas. My electricity bill went down about $185 last quarter and this was including having the airconditioner on nearly every day earlier this year. I was also $160 cheaper then the same quarter last year. I had about 4x 50W and 2-3 25W running. However, being that they are in the room next to the aircon, they probably ran just as much as they did in winter.