I bought a Trio Of Johanni 2 blue males and one yellow female (I think That Correct). Well anyway one of the males would circle with the feamale and onewould break the chain and the other would follow, all of this done in a regular 29 gallon tank. Also in the begining the female marked off her territory which is a small cave and would never let either male near or in the cave. Later on she allows one of the males but not the other. Now and then it seems the two fish will take turns guarding the cave from the other fish. Is This a sign of a spawning couple or is this just a incident. Either Way what should i Do? Add more flat rocks or keep the Same layout?