Heater not working - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 08-13-2015, 01:14 AM Thread Starter
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Arrow Heater not working

I just bought a new 100W ViaAqua Quartz heater for my 5.5g aquarium. The water stays at around 70 degrees and I am going tomorrow to buy some RCS and had read that they thrived in warmer water. So I turned the heater on to 78 and....nothing. However, when I set it very high, say around 88, the light comes on and the tank heats up. What am I doing wrong? Also, if the heater is broken, should I just leave the shrimp in the 70 water?
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post #2 of 6 (permalink) Old 08-13-2015, 01:20 AM
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Seems hard lately to find a good heater. A 100 watt heater is way too much for a 5 gallon tank though. I have had good luck with the Marina brand. You could almost get away with one of those small pad style heaters for a 5 gallon. I would get a replacement at the minimum.
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post #3 of 6 (permalink) Old 08-13-2015, 02:59 PM
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Quote:
Originally Posted by keymastr View Post
You could almost get away with one of those small pad style heaters for a 5 gallon.
+1
If you can return it, do so.

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post #4 of 6 (permalink) Old 08-13-2015, 03:08 PM
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I would also suggest 100 watt is way too big. The way heaters are rated is way off in my experience. I found out the hard way that a 50 watt will kill the fish in a ten in under 8 hours! I would look for minimum size heater or if you are a DIY guy, go another way to protect the fish. Heat from the bottom using simple light bulbs can put plenty of heat in a five. Tied together with a simple temperature controller, light bulbs can be out of sight and do a good job.

Please note that this is not just based on my current warm climate, as I have also lived as far North as Northern Ohio.

Last edited by PlantedRich; 08-13-2015 at 03:10 PM. Reason: add
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post #5 of 6 (permalink) Old 08-13-2015, 03:17 PM
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Quote:
Originally Posted by Fishdude099 View Post
I just bought a new 100W ViaAqua Quartz heater for my 5.5g aquarium. The water stays at around 70 degrees and I am going tomorrow to buy some RCS and had read that they thrived in warmer water. So I turned the heater on to 78 and....nothing. However, when I set it very high, say around 88, the light comes on and the tank heats up. What am I doing wrong? Also, if the heater is broken, should I just leave the shrimp in the 70 water?
When you buy a product the expectation is it will work. When it doesn't don't fret over why it's not working. Simple solution is to return it.
This heater works like all other heaters practically. You just turn the knob on top to set the temperature. In other words it's not your fault. And next time read the labeling so you don't buy more heater than you need.
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post #6 of 6 (permalink) Old 08-13-2015, 05:27 PM
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Whether or not that is the proper sized heater for that tank, it sounds like the heater is working but the calibration is off. From what I recall none of the heaters other than the eheim jaegers can actually be calibrated.

I never trust the numbers printed on the heater though. Turn the dial til the light turns on and monitor the temperature via a thermometer in the tank. Or, use a temperature controller to run the heater.
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