10-30-2006, 06:52 PM
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Is there air bubbles running though the tube, If so you r skimmer is working. Since you just set it up there are no nutrients for the air bubbles to attach to, there for you will not have any foam yet. Once your nutrients start to form in the tank the skimmer will produce foam. Take the knob and shut it off, then slowly open it till there is a column of bubbles, and keep it there. What will happen is the air bubbles will attach to the nutrients and whatever else is in the water, when this happens the air bubbles will float to the top into the collection cup, which is the foam. As for the PH I have seen electronic meters, but do not know how well they work. Hope this will help out.