JM
Without a pic, it's hard to tell what crab you've got.
One mistake we make when we are new to the hobby is assuming the LFS has enough knowledge to keep you out of trouble. That assumption would be wrong in many cases. The LFS owner, if he knows anything at all, is many times not around. So, you get one of the employees who was flippin burgers at McDs yesterday and now he's the know-it-all at the LFS.
Trial and error my friend, plus read, read ,read everything you can get your hands on about this marine hobby.
All of us have to pay our dues one way or another. I did it (55 years in the hobby). Everyone on this board is doing it. Welcome to the board and the hobby.
Have fun learning. Strive to learn as much as you can.
Not only have you learned that not all red hermits are good mates but by sharring it here you tought some of us. Thanks!
The Oldest Salt