Is there a difference in overall tank strength if I were to have a overflow hole drilled in the back or bottom of my 77g 48"lx24h Hagen tank?. It has a upper and lower metal frame and the glass is a little over 3/8" thick. It is not tempered and the hole will be 2.5" to accomodate a 1.5...
I am setting up a 77g reef, I initially bought a CPR overflow but it is just too loud . I want to have my tank drilled for a corner overflow. I'm using a Ecosystem sump which recommends 800-1000gph . The sump is directly below in the basement. Questions are how big of bulkhead, lfs is...
