Backyard Aquaponics
A place to discuss aquaponics

Thanks all.
That is great info.

I have a sand filter hooked to my system (only because we got it free with our first pump.) I have found that if you are gonna hook up a sand filter to a system, you pretty much need to keep using it all the time. If you shut it off for a few days and then open it back up, you will definitely notice the nasty anaerobic odor of the moisture that sat in it stagnating for those few days. I would advise against having any sort of bed or filter hooked to a system that is not in use at least daily.