Yes, you must have a beautiful fish tank filled with delicious treats...or so he thinks. I'm glad you covered the side.

My big girl Tank watches my cat! Lol! She'll come right to the front glass at night and if the cats in the room she'll move her angle to see her. Kinda funny!

My little pac is only a few feet from my red eyes tank and he used to watch them. I turned his tank so the heat pad is on that side...mean mommy I am . It did not bother my red eyes but I'm sure their hopping around and croaking was enticing to him.this was awhile ago. He sleeps on the other side of the tank most of the time now and doesn't stare out. He also used to jump up against the glass and hit his head before I covered it. Fearless, lol! That stopped also.