Anemones-Not 100% positive, but I'm pretty sure they are not in the Condi genus. Also, not photosynthetic. I had 2 in a 10 gallon for like 2 years with no light.
"Sea lettuce"-I'm pretty sure I'm thinking of the same stuff you are. I got some a couple weeks ago. Not to hard from what I've seen. I can figure out the genus of it for you if you want. I'm think Ulva but not positive. Haven't paid that much attention to it.
small mangrove snapper-after (long) time will get big
gulf or leopard toadfish-has a big mouth and "elastic-like" stomach, can and will eat anything that will fit in its mouth
lyre goby-cool fish
violet goby-cool fish
southern stargazer-cool fish, do have a slight electrical pulse but i've never felt it, also will eat smaller fish
smooth head scorpion fish-never heard of one caught in galveston. only seen them caught in trawls at least 1 mile offshore.
sargassum angler-very cool fish but voracious appetite, same rules as toadfish apply here
There will be a variety of gobies and blennies that we will catch at the collecting trip. Also, least puffers, a variety of livebearers, 2 to 3 species of pipefish, clingfish, a variety of flatfish, and a variety of family Sciaenidae (drums, croakers, etc.) can all potentially be caught on the trip.
If/when I think of anything else i'll post.
Anymore ???'s just ask.