Tank Cycling Question

[knghtryder]

Hi,

I am just on my third day of cycling my tank, all things seem to be going good so far. I just added one of my old heaters to the tank, I thought it was working properly. I tested it earlier and it was fine but by the time I got home I guess something was wrong with it cause I couldnt control the heat properly. The temperature in my tank for the first two days was about 79 - 81 F. when I got home I saw that the temperature was 84.5 F.

I am just wondering if high temperatures for about 10 - 11 hours would possibly destroy the live rock?

I have also noticed that I cannot get a steady temperature going, it seems to fluctuate. Does any one have a quick soltion to keep it steady?

Please let me know, thanks.[/list]