| Re: return pump what you want to do with the refugium/sump will determine what the best flow rates should be. most go with about 5x turnover rate total water volume in there refugiums. the limiting factor on the overflow rate is your bulk head and that will determine your pump size, so match your pump with your bulk head then adjust acordingly to your needs and your tanks setup capabilities.
just incase your dont know already but the turn over rate in the main tank should be say 20x turnover, via powerheads, return pump ect..again this depends on what you are keeping, sps,lps, softies ect..but it does not mean you have to have that same turnover rate of 20x going through your sump. whatever the main taks rate is most refugiums run at 5x turnover rates or even less. |