Hi Folks We have just dug our first pond after years of admiring other family members ponds. Took us a while to get round to it, but having bought a trio of Bali Ducks, wanted somewhere for them to swim and get wet. We are also keen to keep fish as well. Have done all the relevant research on filter and pump sizes and got the following. 3x2.8x.4m pond volume of pond approx 3400lts, liner fits all good, bought a lotus green genie 6000 uvfilter, and a Fishmate pond pump 4000. All good so far, put some plants in and 5 goldfish. Since putting the plants in, the water just dosen't want to clear. Everything I can find on the net says the size of filter and pump are fine, could it be the plants or the ducks that are causing the problem? Please help, Husband now pulling hair out, and he dosen't have much left!