holes

hi, i recently bought a 200 gallon drilled tank form my LFS. i was fitting the bulkhead and found this crack in the glass. will this affect my tank and cause leaks or will the bulkhead be fine

Hi, I'm not sure if this post belongs here or the DIY section so any mods feel free to move it if you feel that's necessary. So I got a used 555 liter tank (~150 US Gal) and I want to make a sump system for it. I already bought the bulkheads and the pump, but not the stand and the actual sump...