[Samw]

Definitely a protein skimmer. A powerhead helps but isn't as effective as a protein skimmer using a venturi. I'm going to purchase a dissolved oxygen test kit and test the levels of O2 with a protein skimmer running and then with just a powerhead several hours later to see how fast it drops.

Another benefit of oxygenating with a skimmer, besides skimming the water, is that you don't get the salt splash from using a hang-on powerhead with a venturi.

[ 06 May 2002, 20:21: Message edited by: Sam W ]