I'm going to convert my 120 gal. reef tank to freshwater. I have a 40 gal. refugium tank under the display tank. I would like some suggestions for the best filtration with this set up. The display tank is pre-drilled and right now I am using 2 Rio 20HF pumps for the return, aprx. 870 gal per hr. each. Is that way too much flow for any type of filter in a sump tank for freshwater? Please give me your thoughts on what would be the best set up with the least amount of noise and maintenance. Thanks for your help.
Ken
Ken