Can anyone post up pictures, or let me know what you did to help seal your tank. my friend has a 75 gallon with a overflow box and would like to know what he can do to seal it and or any other tricks or tips that can be done to get a tank octopus ready. He is thinking Bimac also if that matters any. We've looked around on here and found lots of pic's of Octopuses but none of the tops of tanks. Please help us if you can.