I think you mean festae, not festies. festae = red terror cichlid. Not sure what the genus is, exCichlasoma maybe.
RD = red devil, Amphilophus labiatus
GT = green terror, aequidens sp. gold or silver saum
JD = Jack Dampsey, Rocio octofasciatus
There is a whole thread of acronyms in the FAQ section.