Hi guys, I am new at this and want to make my first tank. I have read a lot about using plywood and fiberglass, but I wonder if I can use high density foam as the core for the tank for a lighter and ch. My idea is cover the entire tank in fiberglass inside and out. will this work? it is a going to be approximately a 200 liter tank (around 60 gallons) the idea is making it light since I will be moving withing one year and don't want to carry a heavy tank. Thank you so much