Already took the media out.
I had a Coralife Needle Wheel skimmer for the 50 I tried to do a while back and read some bad stuff about it being prone to overflowing and wetting everything. Honestly I don't have the funds at the moment for any of the high cost skimmers, like the undertank ones.
Glad to hear those corals are photosynthetic. They looked like polyps to me, and not like sun coral. There was also a right ton of them on the rock in that tank and I can't imagine a shop having a ton of heterotrophic corals around-- that would take a lot of man hours to feed.