I have at home a fairly large GLASS Tank that will soon be setup with for Saltwater. Its 3ft x 2ft x 3ft. The back of the tank has a sump that is siliconed in and on the bottom theres some wierd pegboard siliconed in. It sticks out a good 10 inches in the back and 2 inches on the bottom. I want to remove all this so that I can use it for fish then build a Sump from a 29 Gallon Tank. Any Ideas how to get it all out of there?