So Im having my 75 drilled tommorrow so I can add a sump. Im tired of looking into my display and seeing equipment. So assuming my lfs doesnt crack the tank while drilling (yes they so comfortingly said its not their fault if it cracks) what would be a good simple sump design for me and do you have any advice. It will be on my 75 gallon rectangle 4 foot tank. I cant fit my 55 gallon under it unfortunatly so I;ll try and fir my 40 gal under.