UV light and tempature rise

[mikeynice]

Hi all
I am new here as far as posting but have been reading for a while. Excellent site!!
Any way I have just finished my cycle in my 90gal FO tank and have turned on my protein skimmer and UV light about a day ago for the first time. It appears that the temp in mytank has gone up to around 88deg F from a normal 82-84. My questions are is it possible that my UV light is causing this extra heat. I am using an AQUA ultraviolet 25watts. Also is this to much wattage for this size tank? If so Why? Thanks

 

[mr . salty]

The size of the UV is determined by the flow rate.How fast are you pumping water through this 25 watt unit?? I have the Aqua 15 watt on my 130,and it's doing a great job.As for the temp,,,I kinda doubt if the UV or the skimmer have anything to do with it...

 

[mikeynice]

Thanks for the quick response Mr. Salty. I am using a Supreme Pondmaster Mag drive pump Model 7 which pumps 700gph. I have roughly 5 feet of 3/4 tubing. Hope this helps.

 

[tangman99]

This is strange. I also have a 90 gallon FO and my temperature was always 78 degrees. I just replaced my RIO 2500 with a Mag 7 and added a Berlin turbo skimmer at the same time which is powered by its own required pump. My temperature is now around 84 degrees and steady. As I added both at the same time, I don't know which one is to blame, but one of them definitely caused the change.
Neither the Mag nor the Berlin pump feel hot or even warm so I am at a loss. My fish seem fine and don't seem to mind the change so I'm not that worried about it.
Tangman

 

[jimi]

The u/v can definately be the cause. They are warm and the water runs past an intense bulb so the water most definately is warmed. You are not overpowered on the u/v but you may be over pumping for an effective kill rate.