Today I woke up and saw that my BTA had very inflated tentacles, more than usual. I thought nothing of it and went about to do my business. After lunch I walked by my tank and saw what appears to be a piece of rock sticking out from its mouth.
I was pretty confused as I looked closer. I realized that the rock it was attached on was now protruding out of the mouth. Everything looks normal with the BTA except for the exposed rock from underside. Does this mean it is splitting?
The only environment change was yesterday when I did a weekly water change.
As you can see, the LR clearing poking out in the middle...