My RBTA has been acting strange for some time stretching the mouth around a corner of the piece of live rock that it's attached to along with being small in size. on 3/6 it split the main RBTA wasn't has extended as usually but i'm sure it was healing. over the last few weeks and today both RBTA's are doing great the main one is almost as big as it was before the split. The new RBTA is so still in the same spot when it split which i'm praying will stay or I will have to sell. Here are a few pics from the day it split. tough to get good shot as the side of the tank it's on is only 10in from the wall. even the new RBTA doesn't really have any bubble tips more like LTA haha The RBTA on left is Main and one attached to overflow is split RBTA. Will grab some new shot tonight...