Newbie advise needed... Diary of a new tank junkie

[ensquire]

Okay then, Now for a out of left field question.
Has anyone ever sealed off 2 bottom holes and not had problems??
What Im thinking is that I would like to eliminate the corner overflow box entirely and use a piece of glass and lotsa silicone to seal off the holes in the bottom. What are the chances of success????? I would then demolish the corner box and go with a rear exterior overflow and drill 2 return lines at both ends of the rear glass panel. Don't wanna do the over the top return.

Opinions???????????