The size of the these will be between 1.5 and 2.25 inches. They are only showing a little of the red coloration as 2 inch juveniles. The red coloration will be come more prominent as they mature. Most have some patterning, mainly on the head and fins. The amount and type of pattern and coloration on them can vary significantly. We are always willing to try and sex our fish for a customer, but we do not guarantee it. All Discus are unique and the coloration/pattern of each can vary. The Discus you are purchasing is a juvenile. Discus will not show their full pattern and final coloration as in the picture until fully mature at around 5-6 inches.
Gallons per inch of Discus: 1.5 for 2", 2.5 for 3", 4 for 4", 6 for 5", 8 for 6"