Everything seems to be going fine.
My only concern is the water circulation. When filling the tank, it filled evenly and water had NO problem moving through the mesh. However, the heater is on one side, and I noticed it isn't holding a high temperature on my thermometer (which is on the opposite side). It changes between 74 and 78. Before the divider, it use to hold a constant 76 degrees. I use a Tetra 2-15 gallon heater, so maybe that is the problem.
They noticed eachother in this picture, but my CT turned around a split second after noticing the DT. Sometimes I'll see one dart out of their corner towards the mesh like, "WHAT IS THAT I SEE OVER THERE???"... but so far they go about their own business.