I am planning to setup a Brine Shrimp and Amano Shrimp fry sometime in the future.
Is there other salts besides Marine Salt that I could use?
For example, would something like Coarse Salt or Rock Salt work?
Not sure about amano shrimp. If they come from seawater then marine salts are probably best, however if they are from brackish water you could try rock salt first and see if it works. If not then go to marine salt.