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Tetra? I can't find a Tetra Luft air pump, only a Coralife Luft air pump. The smaller Luft is only 4 l/min which is no improvement over what the venturi is pulling. Coralife has a few larger Luft air pumps (the Super Luft) but they start at $70 and the smallest one pushes way too much air (38 l/min). There seems to be a gap for pumps that are over 500 l/hr and under 2200 l/hr. I was hoping to find a pump that is 750'ish m/hr and dial it back with a valve to find which air flow works best but I'm not having much luck.
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