Originally Posted by Fibsog
I moved the 1/2 gallon tank next to him and he stopped. Thanks for the help
Sometimes we forget that just as we can see in through the glass, the fish can see out through the glass.
I once had a tank with a school of rasboras that continually stared at the plants I had outside the window behind their tank. They wanted in there so bad that I had to close the shade and put some more plastic plants that resembled the outdoor plants into the tank to calm them down. Kinda makes you wonder what goes on inside their little heads.
Glad it was all resolved