http://www.aquariacentral.com/forums/showthread.php?t=90499
Thats one for you to have a look at mate...
Niko
wow your pretty good at the DIY.... i read the thread and was very impressed .... i think i might go with your sump design i was just curious what you used for your skimmer and refugium lighting .... also what you kept in your refugium???? and another question was with your overflow being in the bottom of your tank what would you do if there was a power failure??? i'm sure i'll have more questions later also