Quote:
Originally Posted by Simons
I have my saltwater tank on a dedicated 12 Amp circuit. Not sure 'two' separate ones are needed, if your power is out for example, it's out. I don't think your total load 'should' be more than 12 amps!
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12 amp circuit? Don't recall seeing a circuit breaker in my Load Panel with a 12 on it. Aside from the mains (100 amp or larger) I have 15 & 30 amp breakers. 20 amp is another commonly available size. You may be confusing the generally accepted safe 12 amp limit (80%) on a 15 amp circuit with actual circuit breaker rating.
Quote:
Originally Posted by whatcaneyedo
My logic is that its a good idea (building code) to have electrical devices that are exposed to water/moisture plugged into a GFCI receptacle. Unlike a regular breaker or fuse its pretty easy to trip a GFCI. So by splitting my water circulation pumps between two circuits I reduce the risk of my tank completely shutting down by 50% if there is some minor issue.
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This, right here^^^^^. Having all your tank equipment on a single circuit, regardless of whether it can easily handle your load is a recipe for grief. Might not be sooner, but sooner or later it's bound to happen. Plenty of examples of reef tank horror stories related to tripped circuits. Backup power source in case of troubles is also highly advisable.