Light works for me at first I don't have demanding corals. My bubble tip anemone seems fine, it has just been moved to the top of the stone work. I liked the concept of the loop system. But the display stopped working after a few months, so it's a guessing game as to what the lights and fans are set to. Tried to call company, always get voicemail no matter what time of day or department I try to call. I left several messages unanswered. So I guess my guarantee means nothing. Even when converting from 55 to 125, the lamp brackets no longer fit. So I need to custom make a new mount as they don't have options for larger tanks. So no brackets for large tanks. And no customer support. For that reason alone I have to give this one star. save your money There is a better choice of light
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