I've had mine for almost a month now.
I was always planning to have one so I got it first before getting the corals.
It has its own mountain island to itself as well. It stayed in the same spot for three weeks after putting it in, then moved last week, not too far but a bit up and around to the side-maybe 3 inches in total.
Although knowing murphy's law I'm sure if I ever put in a coral I love, it will suddenly decide thats the spot it would like-lol
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