So i have decided to move on from angelfish and try some cichlids. I just dont' know how this group would work. I already have 2 green severums and 2 gold severums. Would like to put tiger oscar, albino tiger oscar, jack dempsey and a blood parrot together. Would there be any issues with this group? Tank is 75 gallon with penguin 200 and aquaclear 110. 2 peices of drift and some slate tile to create some caves for them. All starting as juveniles. I know the tank is smaller for those fish, but have plans to go bigger in about a year. possibly 200 gallon.