Many many times...

haha, crazy!

Thanks for the input I guess in a nutshell Im not doing too bad and I wont worry about the swings.

Cheers

I think its important to mention here that a slow swing is what is important. I think the cooked tanks result from a tank going to normal temp to the high 80s or into the 90s within a few hours. I think the same summer Brad remarked that his was hitting the 90s mine was as well with no problems at all. Granted I didn't have any fabulous colors but everything was still alive. I think the temperatures were harder on me and I bought a chiller that year. When the chiller fuse blew that first time I lost a lot of stuff. Mostly because my tank went from a cool 78F to about 91 in the space of only a few hours. :neutral:

I don't think mine ever went higher than 86.5 but I'm always worried anyways.
My sump is in a different room and the window in that room is always open even in the winter so I can maintain my pH so the temp does go up and down everyday. So far I haven't seen anything go wrong but I would love to stop worrying about it :razz:

so what is the highest you would want to maintain with a mostly lps tank 84?

Are you better to maintain a constant 84 or swing from 80 up to 84 everyday?