is ther such thing as "too much water flow"? because i have i powerhead of 500GPH and 2 more from the UWF( i only have the pumps, im not using the UWF)
I don't think there is such a thing as 'too much' flow... of course if you have a 10 gallon tank and are pumping 3000GPH through it you may have some problems. If you keep it within reason you will be ok