The tank has bubbles on the front- kind of like when you leave a glass of water sitting for a while? Is that ok? Jst checking im not doing anything wrong? X
when did you fill it? If you filled it with tap water then it will have gasses in it held in the water from the pressure of the main, exactly the same as the bubbles in the glass of water. These should be allowed to dissipate before adding fish IIRC....yes I am right, dangerous for fish if you don't
http://www.fishforums.net/index.php?/topic/237039-bubbles-on-aquarium-glass/