last night im watching the tank as normal . found a penut worm

then i was checking my stowaway king emerald crab when out of the corner of my eye i noticed the small heads of the xenia pulsing i was so happy and by this morning most of the larger heads are pulsing. i guess these are the trials for a fish tank . have not done any thing differant as of late . oh well i guess ill go with the flow .
thanx for all your help everyone