I'm not entirely sure, tho our tank sat for months with just the 3 fish (in 120g) a coral beauty, small foxface and a clown and then 2 weeks ago we added 6 tiny chromis and a mandarin, could have triggered it. One of the chromis was wounded a couple of days ago and went MIA sooo.... maybe? The tank is nearly 2 years old, I would have thought it would handle it better but who knows... I've got at least 2 giant cukes in there, maybe one kicked it?
*so far* tonight I see everybody but the mandarin still swimming, it's still suuper cloudy but we did a 35g w/c. I'll have to post pics.
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