Nope, it won't work because it will be impossible to exactly synchronize both pumps exactly, so you're pretty much guaranteed a flood almost right away.
What I'm planning to do is to drill my refugium, set it above the tank, pump up into it with a small power head & let it gravity flow down into my main tank. That way if power goes out, it will only drain the top couple of gallons into a much bigger tank & risk of flooding is minimized.
JMO
Anthony
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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