GSP decided to take a few days off???

[Dude64]

Wow... For no apparent reason my star polyp just stopped coming out. Over a year in this location of the tank. PH 8.2, ammonia under .25 (not the dull yellow 0), Nitrite 0, Nitrate close to 5. 1.025 salinity. Nothing new in the tank. Hammer looks great, clowns, zoas, hermits, nassarius, all doing great. no lighting change, no flow change. Any thoughts???

 

[blaxsun]

They do that. I've got 2 large colonies that have all withdrawn over the last week. Usually it's because something falls or climbs all over it.

 

[TokenReefer]

Last time I vacuumed the sand near mine, it closed for 2 days. They're fussy I find