heat and aqua-pro lights

[fresh]

Hi all,

I noticed that my 72 gal tank is having heat swings from 77 before lights to 82 just before the lights go off!!!

Now that is a huge shift in temperature in one day for any fish or coral!

Is this normal? Do others have the same problem? How do you fix it?

The light is mounted with the legs that you can buy from the store, so there is a good 4-6 inches between the light and the water.

I just installed a small clip-on fan on the lip of the tank to help with circulating the air and hopefully lowering down the temperature.

Anybody else has the same problem? Any advice? I really am concerned.

Thanks
Fresh.