This is getting ridiculous...?

Ok, my tank is 5 gallons with a betta and some ghost shrimp in there.THE THING LOOKS EMPTY. and dont say add more plants ornamaents backrounds all that becuase I did and it still looks empty. Besides, you cant even see the fish, let alone the shrimp. If i take out the corydoras, CAN I HAVE ANYTHING ELSE??????? ANYTHING??? I dont care what it is i just want at least 3 fish in there! I'll get rid of the betta if i have to!