Its very unlikely your corals are dying because of single ended moguls. Single ended were used exclusively for YEARS by reefers and most people have switched to DE mainly because of space. I still believe (and IME) that SE moguls are brighter and have bigger light spread than DE mostly because their reflectors are bigger.
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If people don't die, it wouldn't make living important.
And why do we fall? So we can learn to pick ourselves up.
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