Fish Apartments

Hint: I can't get into the Fish Apartments.

Hint: How do I help Narcissus, the Blowfish?

Hint: How do I help Epidermis, the Angelfish?

Hint: How do I help Hippocrates, the Swordfish?

Hint: How do I help Erroneous, the Sea Turtle?

Hint: How do I help Gregarious, the Manatee?

Hint: How do I help Olympia, the Lionfish?