Ever since getting my C-530, I have had to unplug my heater because the C-530 produces SO MUCH HEAT. My 110g tank gets to 84-85 degrees and I thought it was a combination of my wavemakers and powerhead. It wasn't until my impeller broke and I had everything running as usual minus the C-530 that my temps started to drop and i plugged in my heater to keep it around 79 degrees. Now the new impeller I ordered gets here, C-530 is up and running again and withing 24 hrs my temps are hitting 84.1-84.4 degrees. What the heck? This is about 4-5 degrees warmer than I like...my room temp is 70 degrees, I have no heater plugged in and when I unplugged the marineland to see if temp drops (even though i knew it was the culprit) within an hour it started to drop almost a degree and I'm sure it would have continued to drop. But, I Plugged it back in cause I still need a filter. Does anyone have these issues or is this excessive for this canister...I don't think this should be happening and think my motor might be heating up abnormally...Any similar experience? Is this normal?