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circulation

  1. need more more circulation "ideas"

    Beginner Saltwater Aquariums
    Hi guys, I have 2 500gph power heads circulating water but apparently its not enough , I have a major cayno issue in the front section of my tank any ideas on how I can add more current along the front floor of tank , you think if I add a cyclone power head on the center rear of tank pointed...
  2. Is flow rate too high?

    Beginner Freshwater Aquarium
    Hey all, I just upgraded filters for my 56g column from 2 fluval U2 to a Fluval 305 canister. I'm wondering if the flow rate is too high or if there's an "optimal" flow rate? The box says 260 GPH (185 GPH filter circulation). Above the outtake, sometimes I'll notice a little water funnel here...
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