I have a four year old pair of Neolamprologus cylindricus which I was thinking of trying to breed. The male has taken over the 4 caves, making them all one multi-roomed cave leaving the female hiding between the aquarium glass and the end of the rock structures. The male only peeks out to grab food that wanders into his caves. The temp is 80 deg F, ph is 8.6, ammonia, nitrites and nitrates all test 0. The tank is 12 gallons, small I know. But a larger tank isn't feasible at this time. Has anyone bred these beautiful fish? Do I have a hope of breeding them in a 12 gallon tank? Should I raise the ph or temp?