I agree with the above. #1 looks like a very unhappy palythoa sp of some sort, #2 is definitely a torch, and #3 is a green paly often refereed to as "Texas Trash" . It is one of the species of palys known to contain high enough levels of palytoxin as to be harmful if handled improperly (gloves/eye protection, wash well afterwards. It can also spread very quickly and become a real problem to keep in check. Keep it isolated to it's own little rock pile!