I use two in my RedSead 350 (96 gallon tank). I've got them both running on the lowest settings and it's great. Great current, all my corals are happy and 1/4 the cost of brand name. The instructions are terrible and it lights up when you try to connect the controller box while the device is on. So be careful. This is the reason for 4 stars as I think it's a big security issue.
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