Only vampires and fledglings that have blue tattoos are not destroyed by sunlight but it is painful to them so classes are held at night.

Fledglings are marked by a sapphire blue crescent shaped outline on their foreheads, when they become full-fledged vampires, this mark becomes solid and they receive more 'tattoos' which extend over their cheeks (Usually represent some personality aspect; for example equestrian teacher, has tattoos that look like horses.) 

Other fledglings and adult vampires need to drink small quantities of human blood, but instead they get it from blood banks. The taking of blood is pleasurable for both human and vampire, comparable to (and better than) sex and a drug rush, it may lead to a strong emotional bond, called "Imprinting" between the two. When an imprint is broken, either through death, imprinting of another, or mystical means. It causes major anguish between the vampire and human.

Red Fledglings: A blue fledgling that died because they rejected the change. At first they are wild, feral, and crazy for blood. They had lost their humanity. But once they change into full vampire they mature into a red vampire. Neferet brought them back from the dead to be on her side of evil

New Powers: Some are able to reach into minds - Alter memories, place false memories, wipe away memories (Do Both)

Downfalls: They can't go into sunlight without burning. If in the sun too long they burn up and die, If a red vampire is not invited into a home they cam't enter, if they are pushed from home they are thrown away in pain. 

During daytime: Feel more at home under the ground during sunlight and moonlihgt. They "sleep like the dead" when the sun is up (So no waking until nightfall).

Feeding: When feeding their eyes will glow red.

They can only feed on human blood. (Can choose to be good or evil)

Blue Fledgling: Going through four year change process, They don't have powers while they are transitioning, Can go into sunlight, Drink both human and animal blood.