no, they start to conflict with one another. 2 at most

Not particularly.

>>21476882 (OP)
well this thread is going nowhere, what about you OP? you got any combos worth trying? shellfish with other shellfish seems to work ok

the gay area calls it ciopinnio or something
>shrimp
>mussels
>possibly clams
>dungeness crab
>solid white whatever fish
awesome

>>21477086
so same subspecies-ish? I dunno biology

Shrimp are pleasing to the eye and make a good stock, but when it comes to eating soup, they get in the way like mussel shells.

>>21476882 (OP)
It's a high ceiling and a low floor. If you're in a place with access to fresh, good quality seafood, it's amazing. I'm about an hour from the Chesapeake Bay, and there's some amazing "elevated" places doing stuff with local stuff. But I can go to a well rated Thai place in my home city, and get a seafood Tom Kha, and the squid is rubbery, the mussels are pathetic and gritty, and the shrimp is basic bitch frozen grocery store level.

>>21476882 (OP)
A seafood stock should really be just one sea critter. Lobster, shrimp, bonito, etc.