I am thinking of getting a dovii cichlid, what is their minimum tank size, I've heard everything from 120 to 180, some have said 220 to 300, a few have even said 600 gallons, so what is the real minimum tank size? Because I am going to be making the aquarium and finding large enough glass panels for the tank that's thick enough will not be easy. I know I want it to be atleast 6 foot by 3 foot by 2 foot