Sea Pen

[mainejo1]

I have had a sea pen for almost two weeks now, and am enjoying him immensely. He seems to be doing quite well, and opens and closes randomly. I understand that they don't need much light and actually illuminate at night if they are out. (Mine usually isn't, I keep getting up and looking.) I can't seem to find out any info on them, such as what they eat and how often, do they need much calcium, etc. Any info would be appreciated. Thanks!

 

[kass]

I had one yrs ago. Loved it. It only maybe lived a yr though, got stung by a tankmate. I would guess that it likes some light if it only comes out during the day. Mine was like a soft coral. I do know they like a sand substrate to burrow in and are filter feeders. They would probably benefit from iodine additions.