Tank Territory

[t bone]

I have an 80 gal tank that is about two months old. I have about 40 lbs of live rock and just added another 10 lbs as well as two yellow wrasses. One thing I noticed is that my other fish have changed where they hand out. I have one dottyback that seems to now rule about 1/2 the tank. The two damsels, clown and wrasses all hang out on the right side of the tank.
They are all getting along very after some initial nipping by both the damsels and wrasses. Just wondering why they have changed their swimming habbits and sticking to the right side.
Any thoughts?
80 Gal
50 lbs LR
2 Blue Damsels
1 Clown
1 Dottyback
2 Yellow Wrasses
5 Hermits
5 Snails

 

[jacksonpt]

Here's my guess: When you added the additional 10lbs of LR and the new fish, this changed the dynamics of the tank. If you moved the furniture around in your living room, you'd probably end up sitting in a different spot, right? Same, house, same room, just a different setup. Same idea goes with your tank.
That's just my theory. The same thing happens in my tank.