I bought these this past weekend and don't really know what they are or how to feed them, hoping someone will help me out.

this first one I believe are acan Lords? I've tried feeding mysis and also zooplankton but it all just washes away and it doesn't seem to act like it wants to eat anything



This one I have no clue what it is and it seems to like mysis shrimp as it floats into it's mat of tentacles or whatever that hair looking stuff is




Thanks for your help


Rob