thanks, that's great to know. for those of us not breeding or who just have one tank in question, is a riostat and heat gun adequate? And, is there a riostat that has a large enough control knob that it can be finally adjusted. the trouble I've been wrestling with with this thermostat is that the slightest turn of the small knob causes a large enough swing that it's hard to nail down. today I think I have it finally figured out, which makes me want to tape the thing down and or score the dial so I can easily get it back to where it was if it gets inadvertently moved.









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