OK, If you want to talk about research...This kinda goes against your thinking. This is from the vendor site I have purchased from in the past, and what also lead me to start this thread.
I am interested in responses from people who ACTUALLY have EXPERIENCE with more than 1 Gramma...
The most coveted of the basslets, the Royal Gramma Basslet or Fairy Basslet is beautiful. The front half of its body and head are a bright purple to violet, while the back half is a striking and vibrant yellow. It is an excellent choice for a reef aquarium, and since it remains small, is perfect for small reef systems.
A single specimen should be housed in a minimum of a 30 gallon tank, while a school requires at least 55 gallons to thrive. Because the Royal Gramma Basslet is a deep-water dweller, it prefers caves and extensive rockwork, as well as a somewhat subdued lighting arrangement. When housed in a group, the male will usually be larger than the female. It can become territorial with time.
As a carnivore, the Royal Gramma Basslet will do well on a diet of meaty fare including marine fish, crustacean flesh, mysid shrimp, and quality frozen preparations.
Any one else have any input?
Thanks