I’ve bought tons of 40B’s and even a 20 long from them and drilled them easy peasy... I’ve done a little reading through and because they run so many $1/gallon sales now the tanks are never guaranteed to not be tempered. Apparently they use whatever glass panels they have readily available. Typically only the bottom is tempered, but that’s not always the case these days. My tank is shattered proof...
That’s good to know.. and really annoying. Drilling a 75 is a wonderfully cheap alternative to buying a reef ready one. Plus, reef ready almost always means getting that durso problem.