thanks for recommends, my fish is around 8 months & I thought I got 2 male + 2 female for taiwan reef, and ruby red I got 4 but have no clue about them(sex) all fish is about 3 inch. Do I need turn on the light for during the day or just when I feed them. is it light really important for getting color? and could you tell me which cichlids dislike bright light? oh, my light is some kind of aquarium, once again thanks for helps.