So Im downgrading after having 125 for last 6 years. It was really hard decision. So I want too set up my new 40 breeder and I read a lot about different kinds of overflow system. I decided to do " Bean Animal overflow" That required to drill 3 holes on back wall. Never done that before. I goess I was to exited and nervous at the same time. I drilled 3 -1" holes. But I think I screwed up . Do you think I drilled them to close to each other? I drilled 1 3/4 holes. The distance between each edge of the hole is 1 1/2". Is that ok or it is too close? O man Im so ****ed now. What was I thinking???? Now Im afraid that I messed up structure and glass won't be strong enough. Let me know, please. Is it my project done already.. And I need to buy new tank?