Noticed something

[FrAnK3333]

When I was looking at my tank yesterday, I saw terrorites that have formed. There is a line in which the cichlids dont cross, and the loaches dont cross, a little left from center in the tank. I have 2 main stone caves, one being huge and having caves form from it and the other the same but smaller. The clowns have conquered the big cave. The male cockatoo, and female ram have conquered the right. The 2 female cockatoos and male ram control the left. ANd the danios and otos just go all over. I thought it was funny when the female ram went to the other side and was chased out. Fish are doing fine, my rams have gotten really yellow and my clowns orange. Does anyone else have something like I do?