I am by no means an expert on parrots, but they are cichlids, correct? From what I have seen at LFS
's and by reading others posts, cichlids are diggers. I know Menagerie has mentioned on numerous occasions her cichlids love to dig.
As for the colors, I am not sure. Was this a 'jellybean' parrot? If so, many times these colors are not natural but are dyed to increase desirability and price. These colors will fade over time. Other than that, I am not sure and would wait for someone who keeps these fish to share their thoughts.
38 Gallon (Freshwater): 1 Green Swordtail, 3 Yo-Yo Loaches, 1 Clown Pleco, 1 Blue Gourami, 4 Otocinclus, 7 Cherry Barbs.
46 Gallon (Saltwater): 60 pounds Lalo Live Rock, 60 pounds aragonite sand, 1 Coral Beauty Angelfish, 1 Peppermint Shrimp, 1 Mushroom Coral, 1 Emerald Crab, various snails and hermit crabs.
10 Gallon (Saltwater quarantine):