I have a 45 gal + 20 gal sump tank that I recently purchased. It came with a Vortech MP10 QDW. Is that enough for the tank? I understand it all varies based on my aquascape and the types of corals and fish I keep. But how do I gauge whats enough flow and whats not? I have someone who is filling to trade my MP10 for their MP40, would that be benifical to my tank? Or should I puchace another MP10 if I need more flow?