Ok I ordered me a hob refugium today it is a good size one at arround 5 gallons. I wanted to see what flow rate people recomended for this size refugium. I plan to grow copepods in it as well as some plants that are good at nitrate and phosphate control. Perhaps chaeto. That seems to be the favorite I always hear about. Are there any other good options? so I am trying to figure the flow rate I should push through it. What do you recomend? Jason