Aquarium Club of Lancaster County
ACLC meetings, sponsors information, membership application.
Greater Pittsburgh Aquarium Society, Inc.
Articles, meeting information, and details about the Aquatic Horticultural Award Program.
Northeast Philadelphia Aquarium Society
Meeting and membership information, photos, events calendar.
Philadelphia Area Reef Club
Includes meeting and contact information and photo gallery.
Pittsburgh Marine Aquarium Society
PMAS meeting and membership details, and club background information.