Hey guys I'm thinking about building a fish tank but not quite sure where to start I definitely want to make it out of glass and I want a big one I was thinking 6ft by 2.5 ft by 3ft which would hold about 280 gallons of water. I've been keeping fish for about 6 months and I just want something more. I've read about sumps and over flow but I'm not quiet sure what that means even though I've seen pictures it's just still not clear to me. Do I need that for a tank that big? Any advice would be great thanks guys!