from my experience i would reccommend joes juice as it eliminates both aiptasia and majanos. first picture looks like some sort of ricordea and the 2nd picture looks like a majano.
Cheers, I have infact just been researching joes juice and from what Ive read it seems to be the right thing for the jobs.
I have been told the first is a sorry looking, maybe bleached ric. It is kinda half hanging onto the rock but swaying in the current. It doesnt look good. Is there anything I can do to help it?