I woke up today to go do some laundry and get ready to start my day. as I walked into my basement, my african arowana (26"+ beast) flew up and slammed my glass top knocking it sky high and falling into the tank. i am so glad that my tank didnt break as there doesnt seem to be any damages (Yet). But the glass top is destroyed. it managed to crack and break the front flap cover. my tank is a 300 gallon glass aquarium from glasscages. 8 feet. will be upgrading soon, to a much larger. story of the morning!