Tropical Fish Keeping - Aquarium fish care and resources

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racingtiger03 09-25-2009 10:47 PM

Heating issue
The last two or three days my aquarium temp has gone up from 80 to closer to 82. This has me a bit worried as I even turned my heater to its lowest setting and the tank still remains at 82*F. What other sources could be causing this? (this is day or night so lighting is out)
30 gallon reef
corralife skimmer - up to 65 gallon HOB setup
Skilter 250 used as a place to store a carbon bag and for an overflow more or less (keeping junk from collecting on the water surface)
Top fin 200w heater
Koralia #2 powerhead

I thought the excess heat was from the skliter motor but Even with it off all day today temps were still at 82. The heater is also hardly ever coming on. The protein skimmer is the only thing I think that could be causing it, how would I check to see if it is producing excess heat? (that or even the powerhead I suppose, but I haven't heard of an issue with the koralias at all *shrug*)

Pasfur 09-26-2009 12:19 AM

Your power heads and lights are the only source of heat being produced. The actual issue is not heat production, but lack of cooling. Do you have a glass hood on the tank?

racingtiger03 09-26-2009 10:00 AM

No, currently I've kept it as an open top. I took the koralia out and gave it a thourough cleaning 2 days ago. It didn't seem to have anything that would have been causing it to make excess heat. Maybe I should break down the powerhead on the skimmer and see if it has anything making it work harder.

racingtiger03 09-26-2009 10:11 PM

Well.. I didn't find the cause, but the temp was back at 80 today.. and has remained there all day! Only thing is, that is still with the heater on its lowest setting now.. so something is still amiss =/

Kellsindell 09-26-2009 10:39 PM

Are you lights on and the tank is at this temp or are they off too and it's still high? If you have your heater in the tank and it's at the lowest settings and for some reason you need it, it isn't going to do anything for you tank. You need to set the temp and watch the tank for the next few hours. If the water temp goes up significantly then take the heater out because it's a bad heater. If the heater is faulty then it'll stay on 24/7 and could cook your tank. What type is it or where did you get it from?

honestly i think it's your lights. How high up are they and what type of lights are they? and IMHO 82F isn't bad. I keep mine at or close to 82F, but it's because that's where i want it. The ocean is at 81-82F in many places and 79-81 in others and higher still in others. So 82F isn't bad and my Corals are doing great, as is my anemone!

racingtiger03 09-27-2009 08:59 AM

that makes me feel a bit better. The heater isn't staying on constantly thats for sure. I had it one notch above the lowest before, so it's not a huge change on it. The lighting is T5HO a couple inches above the water line. Temp is the same with or without the lights on though.

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