Seaweed seeders and methods for using them

A method for using a seaweed seeder comprising:

• attaching a seaweed seeder to a grow-line, wherein the seaweed seeder comprises:
• a bracket;
• at least one cap member, wherein the at least one cap member is connected to the bracket;
• at least one motor,
• at least one propeller, wherein the at least one propeller is connected to the at least one motor;
• at least one main housing, wherein the at least one main housing comprises a length, an outer surface, an inner surface, and an interior space, and wherein the at least one main housing is connected to the at least one cap member;
• at least one electronic controller, wherein the at least one electronic controller is positioned in the interior space of the main housing, wherein at least one electronic controller is in electronic communication with the at least at least one motor;
• and
• an attaching member;
• and
• activating the at least one motor to engage the at least one propeller to move seaweed seeder along the grow-line.