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Water Temp To High?


ewilson04

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My tank has been up for 4 days and my temps usually hover around 81 ( or so says my JBJ digital thermo), is this normal? the only equipment I have running is a AC70 a wp10 and a reefbreeders value fixture which is about 8" off the water surface. What can I do to bring the temp down if needed

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Jackal_Knight

Id get a good old glass thermometer just to double check. Is that 81 degrees with out a heater?

 

U can bring down the temp by having a fan blow across the water or get a chiller

 

But 81 degrees isn't a bad temp thats what i run my tank at during the summer it peaks at 83.

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Lower a bag of ziplocked frozen RO. Or put one of those little rectangular frozen thingies in a baggie and float it. Get a clip on fan so it blows across the surface of the water. Lower the temperature in the home.

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i have a jager 75w heater but I have it set low, the temp in the house is 73 degrees. where can you even find one of those glass ones

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AZDesertRat

Ice is a horrible coolant for a reef, it does not have enough BTU's to do much good and not for very long.

 

A simple clip on fan from Wal Mart for $10 does an amazing job of cooling, so much so you will probably need to put it on an appliance timer or plug it into the same outlet strip as the lights so they run only together. Have it blow across the surface and it will easily lower things 5-7 degrees if you are not careful. Watch the evaporation rate though as this is the cooling method.

 

Back when I ran MH lighting my tanks were 79-81 year round with no issues, today with LED they are 78-79 rock steady with no fans or chillers.

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Jackal_Knight

You can get a glass thermometer at just about any pet store. There like 2-3 dollars and all the ones i have had, had been very accurate.

 

Id start buy by double check ur temp with another therm and then get a cheap fan if the temp is still a problem.

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HecticDialectics

Meh your heater is probably turned up too high. 81 with a 73 degree room temp is pretty special with that equipment. Ignore the temperature on the dial. Stick it in a gallon of water and record the temps for a day to find out how much it's off then adjust accordingly.

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I guess I'm going to pick up a glass thermometer and see what the real temp is and I'll try the heater in a gallon of water if that will help I'm guessing my temp probe is faulty

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yea dont trust the temp on the heater mine is always off.

 

and pick yourself up a small fan at walmart for $4. Thats my chiller in the summer

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The now you need to manual calibrate your heater. Just use a bucket of fresh water and the thermometer to measure the heater temp. I got the Via aqua heater and it temp off about 6-8 degree.

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Did you calibrate your Jager before used? Try to research "you tube" for it. I did calibrated my Jager on other tank and it was off like 3 degree.

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I have the jager 75w and you cant lower the temp below 75 on it

That is a large variance. Calibration from factory shouldn't be 5 degrees off. Can you still exchange it?

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HecticDialectics

I have the jager 75w and you cant lower the temp below 75 on it

 

Sure you can. You just have to learn how to use the "calibration" feature.

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