water that is both greenish and oily indicates rotting material (from the
bottom of the pond?) is getting mixed into the water,
Thanks for reply - I will transfer to the open pots. Local nursery has them
cheap. As for the stuff mixing - that could very well be as my grandchildren
seem to think that fish eat dirt and clumps of lawn grass.
My daughter returned my syphon last night so will clean out bottom as well as I
can.
Thanks

Tom B.
"Born To Fish - Forced To Work!!!"