I have a fair bit of Xenia in my fuge. I also have far more than I'd like to in the DT. I've been running this way for a year and a half or so with no ill effects.
FWIW, my routine is to pull Xenia from the DT and dump it in the fuge. When I feel like there's too much in the fuge, I pull it and then trade/sell/give it away.
I don't know whether it's doing any good, but it doesn't seem to be hurting anything.
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120G Mixed Reef, 28G AIO zoa/pipefish tank
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