Light acclimation.. One frag unhappy..

[One_Divided]

thanks marc.. I just noticed a strong possibility that it was a shroom next to it.. does acro usually take a fair bit of damage from shrooms? I poked it and it had receeded for now.. I'll scrape the shroom off later.

This frags has been healthy and growing up untill now, so that's why I suspected the lighting.. but it could be a lot of things I guess