Acceptable Temperature Swing?

[fragNplug]

I see 1 deggre shift in my tank, using a 1/4 hp chiller though with a aquacontroller JR.
I do find though that the chiller heats up my livingroom a bit too much if i have all the windows closed.
Then it creates a cycle.
The hot room heats the tank the tank needs to be chilled the room gets hotter untill i get too hot and have to open a window.
Hope this winter my windows dont freeze up with moister like it did last year when i was running a cooling fan.

[sphelps]

Depends on the corals you keep, some are more sensitive than others. The more steady you can keep it the better. Maintaining you tank temp a little higher @ 80F will typically result in less swing than if maintained at 78F.

If it jumps up 4 degrees once in a while on those hot summer days I don't think it's a big deal but other than that I would aim for less than 2 degrees.