Hi I recently received 2 new cichlids but was wondering what is the exact species name for these 2? and their sex? They seem to be the most active and most friendly fish of the tank. Sometimes the yellow one will chase the one with the strips away but mostly are around each other. They mostly kind of swim all over mid to top level of the tank and kind of greet you too when you are near the tank. Any info would be much appreciated thanks.