I have a reef devil 3. I run 19 bio balls and the water level is about an inch and a half within the column. I don't control the amount of air being drawn into the water by the number of bio balls but rather I have a valve on the air intake. By the way, I run an Iwaki 40 on it so the flow is actually too high.
I find that having the outlet totally out of the water being the best setup for me. I use the valve to raise or lower the water level within the skimmer.
[ August 06, 2001: Message edited by: tanzy ]
I find that having the outlet totally out of the water being the best setup for me. I use the valve to raise or lower the water level within the skimmer.
[ August 06, 2001: Message edited by: tanzy ]