Juvies or younger will work best but if it's only local, then older shrimp can be done as well. Unless that person plans on putting them in a water that is completely different from yours.
Using ziplock bags will work just fine if you don't plan on shipping. Fish bags work just as well, if not better.
There are many "shrimp traps" you can make from regular household items. You should look into them so you won't have to set up a new tank just for shrimp that are for sale.
Using ziplock bags will work just fine if you don't plan on shipping. Fish bags work just as well, if not better.
There are many "shrimp traps" you can make from regular household items. You should look into them so you won't have to set up a new tank just for shrimp that are for sale.