Pixelboi, how is your setup doing? I am in the final stages of getting my tank up and running and is very similar to yours. 108 " x 36" x 28" tall with 1.5 inch bean animal external overflow. I am down to deciding return pump. I was not clear on what you ended up using. Did you go with the waterblaster pump? If so, which one and how is it working out for you? What is your estimated flow?
Thanks,
Mike