Too cool lets fill that 20gal up aye..
I have 3 20gal long shellie setups and 1 20gal high shellie setup..
20gal long Ocellatus shellie setup..
20gal long Multifasciatus shellie setup..
20gal high Ornatipinnis shellie setup..
20gal long Ornatipinnis / buffalo head setup..
I also have seen some Meleagris shellies and Black Ocellatus that look good here are a few random photos of my shellies..
Lamp Ornatipinnis MY FAVE
Lamp Onatipinnis
Lamp Ocellatus Gold
Lamp Ocellatus Gold
Lamp Multifasciatus
Lamp Multifasciatus
Buffalo head (yes i know no not a shellie)
Lamp Ornatipinnis
Lamp Brevis
Lamp Meleagris another fave but not mine.
Of course all of these shellies would make a great shellie species setup your hard part is deciding which species, good luck aye and enjoy..