They are all rubbish as far as I'm concerned. The best thing to buy is a controller, these have there own thermometer and you set your desired temperature. When the temperature drops the controller turns on your heater. The nice thing is that some also have fail safe features so your heaters dont stay on, in fact if a heater goes wrong then they usually stay on rather than switching themselves off!
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80gal with live rock (35kg/70lbs), 30gal sump, refugium with live rock, chaeto and DSB, Bullet-1 skimmer, Fluidized Reactor, T5 lighting (6 tubes), 4 x Koralia 3's. |