just got my Rhizotrochus from a member

[kengeroo]

sad that the little guy shuts up during the day...
I saw a comment on youtube that someone trained his to stay open during the day ....

only was able to google this...

http://blog.aquanerd.com/2010/10/training-sun-polyps-to-stay-open-day-and-night.html

Has anyone tried such a thing with a night time coral ????

thx

[Ryanerickson]

I have found feeding my rhizo mysis 30 minutes before lights turn on will keep it open for the day and happy.

[SeaHorse_Fanatic]

If it is closed up, squirt some food in its vicinity. Wait a bit, then give it a proper feeding. Then it should stay open for several hours. Good luck.