Barnacles and baby mussels

[Mounda]

I was at the beach today and the pier was covered in barnacles and baby mussels so I scraped some off of the pier and brought them home hoping that I could replenish my refugium with pods and the small critters they might harbor. When I got back home I found a small crab which I isolated in a small cup and was wondering if there was any benefit from adding the barnacles and baby mussels to my refugium or if there is a way to get whatever beneficial organisms from them without introducing any unwanted hitchhikers into my system.

[Whisperer]

Will not survive unless you have constant supply of phytoplankton.

[Mounda]

Any chance of getting some useful pods from them ?

[Uncle Salty 05]

Any chance of getting some useful pods from them ?

It is more likely they will eat any you already have.
Not worth the risk of introducing parasites or something to your system.