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Old 04-24-2012, 11:22 AM   #1 
wulfie
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question about the Hydor Theo 25w heater

I have yet to get a heater, I know, bad daddy I plan on getting a Hydor Theo, but my question is, is it 'fully' submersible? Can I even put the thermostat part in the water so that everything is under the water line? Any help/info would be greatly appreciated
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Old 04-24-2012, 11:43 AM   #2 
Gen2387
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Quote:
Originally Posted by wulfie View Post
I have yet to get a heater, I know, bad daddy I plan on getting a Hydor Theo, but my question is, is it 'fully' submersible? Can I even put the thermostat part in the water so that everything is under the water line? Any help/info would be greatly appreciated
We have it in a 2 gallon tank and it work wonderfully. It,s fully submersible.
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Old 04-24-2012, 11:48 AM   #3 
wulfie
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do you mount your heater vertical or horizontal? I've got the aqueos betta mini bow 2.5 gallon, also gonna replace the filter with a Marina i25

Last edited by wulfie; 04-24-2012 at 11:50 AM.
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Old 04-24-2012, 11:54 AM   #4 
Silverfang
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I have the 25W and 50W

Both are perfect! Fully submersible (so says the package). I've never had the dial completely submersed, but it will be fine. PS, you will have a very happy betta, it's keeping my 10 at about 78-79, and my 2.5 at 81. Happy happy boys
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Old 04-24-2012, 11:24 PM   #5 
freemike
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I love my theos. I have both of mine mounted vertically.
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Old 04-25-2012, 05:08 PM   #6 
Thunderloon
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I wouldn't mount horizontally in a tank near the lower end of the heater's listed gallon range. Too much chance for over-run above the set temp.

I'm absolutely happy with my Theo, its nearly three years old and I've not even had to clean it.

(keep in mind that betta will sit on the warm thing, don't want it to be a hot-seat)
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Old 04-25-2012, 05:52 PM   #7 
wulfie
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well my LPS didn't have the hydor theo, so I had to order it online, will be here friday, in the meantime I'm using one of those 'preset' heaters, but I also got a thermometer so I can at least keep an eye on my temps til my Theo gets here. Of course I'll keep the thermometer as well since I know that the thermostat dials are never calibrated properly. I did manager to score a Marina i25 filter though
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