Drilled holes in the bottom of display tank. will be adding two at the top back panel for over flow. using magnetic check valves to prevent back flow just incase return pump ever fail. still working out the sump area as it maybe larger than 40 gal. refugium it self will be 10/20 gallon,: bio media will be 10 gallon and skimmer area.ill be starting with dry rock in the main display with caribsea arag-alive Bahamas oolite sand. in the refugium will have 1 large live rock with algae growth.
