Exactly. Even I no keep angelfishes, but I know how big they are get.Those are altum angels, they get larger then the Pterophyllum scalare which are what I have keep. Altums grow to 7” long and 8-9” tall. Scalare grow to 5-6” long and 7-8” tall. Altums min tank size is 55 gallons while the Scalare min tank is 20-30 gallons. My old angelfish was 6” long and 8” tall and my blue marble is 5” long and 7” tall.