I have a 65 gallon tank with 6 large goldfish. We hooked up a 5 stage canister filter and the water continues to become cloudy and discolored. I am not sure whats going on. The output where the spray bar is has an adequate flow but the intake where the strainer is has very little suction its hardly removing any particles from the water. What can I do to increase the suction? I've checked and it several times on both ends and it isn't clogged. I have also removed all the filter media and rinsed it. Is the sudden cloudy water just a normal bi-product of a filter that has just been hooked up? It would be nice to see the fish again and to capture some of the waste before is sinks to the bottom. Please help any and all advice would be greatly appreciated