Questions on Keeping a Stable Water Temp.

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thatGuy68 created the topic: Questions on Keeping a Stable Water Temp.

Hello, fellow fishkeepers. I have a couple of questions on my water temperature, but I think I should start with a background on my situation. So here it goes.

I live on the east coast of the U.S., and right now its winter. The temperature is dropping noticeably. At the time I bought my aquarium (summer), I did not think that hood would be a problem. It is a custom made hood, basically pieces of plywood about 2 inches apart, supported by two metal beams perpendicular to the pieces of plywood. My friend who constructed it also nailed a light fixture to the center of the hood. As you could probably tell, the hood is relatively open, which leads me to my question(s).

Is this open hood allowing the heat from the water to escape, while at the same time allowing cool air to enter? Recently I noticed that my water temperature has been hitting lows of 72-74 degrees F when I check in the morning! I have a 50 gallon tank with a 150 watt Aqueon heater. The aquarium is not in a very drafty room, and I have my home heater set at about 70 degrees. I am concerned that this may pose health problems.

Temporarily I placed an old towel over the openings, and the temperature is stable at 78 degrees F. Is this safe?

Sorry for the lengthy explaination but I wanted to be as specific as possible so diagnosing the problem would be easier/faster. Thanks in advance! :)

-Justin
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  • Matt
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Matt replied the topic: Re: Questions on Keeping a Stable Water Temp.

It could be, but I think the main problem is the heater is a bot on the small side. If it's feasible to add a 2nd or upgrade to a larger one I would start there. As for the hoods construction, a pic would be helpful. Mine is for the most part closed, as it my tank, but I have to keep it this way because of my Arowana. The temp stays around 80-82 even with my heaters set for 72. There's no excessive heat from my filters that i've noticed, and it's centrally located in the room and not under any heating or cooling vents.

My other tank on the opposite side of the same room will run a little cooler, but stays pretty constant at 80. That one has no hood, just glass tops and a light. I guess I should also add I live in Colorado, where it's been a balmy 24 degrees for the highs and in the single digits and even below 0 some nights and it's only December.

So long story short now that you've made it through that wall of text, some tanks just run hot and some run cold. Yours probably just runs cooler, adding another or a larger heater would probably be the easiest way to stabilize the temperature.

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OrangeO replied the topic: Re: Questions on Keeping a Stable Water Temp.

From what you've told us I can think of three options:

1) Raise the temperature of the house.
2) Add a second heater or replace the 150W by a more powerful one.
3) Add pieces of plexi glass or something to the cover to help keep the heat in.

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thatGuy68 replied the topic: Re: Questions on Keeping a Stable Water Temp.

Alright thanks for the replies! Anyways I raised my home temperature to about 75 and I am currently looking for a better heater. Budget right now isn't the best, so probably can't afford anything to extravagant. About how many watts should I have, and any suggestions for a quality heater? Thanks!

P.S. - sorry for the delayed reply, internet has been down for about 2 days. Currently using a friend's computer. :)
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bassetman replied the topic: Re: Questions on Keeping a Stable Water Temp.

You can also put styrofoam insulation on the back and sides of the tank to hold heat in. I use velcro tabs to hold it on. I paint it black so it just looks like a background. makes a huge difference. you can put styro under the tank also but it is simpler when empty.You can get it at home improvement stores in 4 by 8 sheets for a few bucks. I use 1/4 inch thickness.


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thatGuy68 replied the topic: Re: Questions on Keeping a Stable Water Temp.

Sounds like a good idea, I'll try it out. Right now I'm just putting an old towel over the tank during the night when the temperature drops a bit more. No problems so far, the temperature is very stable at around 78-82 F. Thanks again for the replies!
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