My 2 month old, previously thriving GSP colony closed up a few days ago for what seems like no reason? Everything else is thriving, water parameters seem within safe ranges, no visible pests, it just seems a tad dusty? I see some detritus settling on it but this coral has been in that spot for 2 months with no previous issues.

, phosphates are undetectable, and mine isn’t bothered in the slightest, it’s growing incredibly fast). One thing I’ve learned over the years is that gsp doesn’t like detritus building up on it. Unless there was a quick change to your parameters (like a sudden alk or salinity swing), as in like over the course of a few hours, I’m 99% sure it was the detritus.


