Juwel Rio 125
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Juwel Rio 125

This is a discussion on Juwel Rio 125 within the Freshwater Aquarium Equipment forums, part of the Beginner Freshwater Aquarium category; --> Just bought the Juwel Rio 125 as a second tank. As the name suggests, it is a 125 litre tank. It comes with filter, ...

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Old 01-24-2007, 11:36 AM   #1
 
Juwel Rio 125

Just bought the Juwel Rio 125 as a second tank. As the name suggests, it is a 125 litre tank. It comes with filter, lights etc and a 100 Watt heater. I am concerned that 100 Watts is not even nearly big enough to keep 125 litres at 25 degres celcius reliably. Am I being over cautious here? If not, how do Juwel get away with selling things like this. I choose the Juwel since they seem to have the best reputation, but I am wondering how they manage that.
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Old 01-24-2007, 12:48 PM   #2
 
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Hello soundsdigital, and welcome to the forum.

A 100 watt heater will be perfectly adequate to maintain the tank at 25 degrees.

I have a couple of juwel tanks myself, and have never had any problems with them at all. Here's the link to their website in case you don't have it.

http://www.juwel-aquarium.de/en/rio.htm?cat=4
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Old 01-24-2007, 02:06 PM   #3
 
Thanks for that, I had been of the belief that as a rule of thumb, you need 50 watts for every 25 litres, meaning I would need 225 watts. Obviously, this rule would vary slightly depending on the dimensions of the tank, as heat radiates primarily from the wate surface, a tall tank would lose less heat than a wide one.
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Old 01-24-2007, 02:26 PM   #4
 
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No, temperature won't be a problem. I've raised the temp to 28 degrees on occasion when treating for whitespot and never had a problem maintaining that either.

Out of interest, are you using the Juwel thermometer inside the standard internal plastic filter housing?
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Old 01-24-2007, 03:29 PM   #5
 
I think you have a 30 gallon aquarium (if my math is right) so a 100 watt heater should be fine, plus incause the thermostat gets stuck it wont overheat your aquarium too fast
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Old 01-24-2007, 04:08 PM   #6
 
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I have sold juwel for about 10 years now and found no problems at all with them except in an extreme cold environment... I normal household conditions your heater will be ok, but if you are worried at all about it you can always put in a 200 watt, but I don't believe that will be necessary
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Old 01-25-2007, 02:27 PM   #7
 
Thanks for the info. I was concerned that the stat was set at 25 degrees, but the thermometer is only reading 23. Turned the stat to 27 and it now shows 25 on the thermometer. I was concerned it was heating 24/7 and not getting any higher than 23 degrees. Cannot find a light on it to see if it cuts in and out.
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Old 01-25-2007, 04:58 PM   #8
 
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Quote:
Originally Posted by soundsdigital
Thanks for the info. I was concerned that the stat was set at 25 degrees, but the thermometer is only reading 23. Turned the stat to 27 and it now shows 25 on the thermometer. I was concerned it was heating 24/7 and not getting any higher than 23 degrees. Cannot find a light on it to see if it cuts in and out.
I saw the new Juwel heaters last week and they have clear see through glass which will easier to check if they are switching on and off
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Old 01-26-2007, 01:28 PM   #9
 
Cannot see it well as it is inside the filter, a light would have made it easier to see. All the other heaters I have seen have one. I find the filter noisy compared to the fluval in my other tank. In all, I am not that impressed by Juwel. I wish I'd saved the £20 and got the Fluval tank now a few days later when it was back in stock.
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Old 01-26-2007, 06:35 PM   #10
 
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Quote:
Originally Posted by soundsdigital
Cannot see it well as it is inside the filter, a light would have made it easier to see. All the other heaters I have seen have one. I find the filter noisy compared to the fluval in my other tank. In all, I am not that impressed by Juwel. I wish I'd saved the £20 and got the Fluval tank now a few days later when it was back in stock.
If the filter is noisy I would get it checked out by the retailer as there should be no noise..I have sold many hundreds of Juwel systems and I have only had a handfull of complaints and all were easily fixed
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