yes...I have a 120g koi display for 3 koi and am using a QuietOne 3000, @ 3ft for 650 gph on a wet/dry for 5x turnover and it works fine...nice and clear water, and my parameters are 0-0-<40...KoiGorgon;3511905; said:thank you for the advice, one more question.. I have a 180 gallon tank, do you think that 5 turnovers an hour is good for 5 koi (currently 5 in but want the setup to last for them)? also, I'm planning on converting a 20 gallon tank into a wet/dry, is that enough room for bio filtration on the 180 gallon?
Pharaoh;3511910; said:5 time turnover should be OK for the fish, but I recommend getting a bit bigger of a tank for your sump.
Pharaoh;3511978; said:I would suggest a 55 or a 40 long.
You could make the 20G work, but you run more risk of overflowing the sump if you do not have it set up properly