the stupid thing about glass and fish tanks is that it removes depth, my tank is 90cm deep and it only looks about 50-60cm deep due to the amount of water and thickness of the glass between the front/back of the tank, when i do a water change and the top half of my rock background sticks out of the water you can instantly see the amount of depth the tank has, as soon as the water rises everythings magnefied again :facepalm: