Well I just spoke with a client who I installed a aquascape pond for several weeks ago. The fish were installed last weekend. The people informed that tonight when they went to clean out the skimmer there were 2 fish in it. How in the world do I keep the fish from swimming into the skimmer and dying? Last time I was thereI saw several fish swimming around the opening of the skimmer and figured it was just a matter of time before they decided to explore it. Can any body give me any tips? By the way....these fish were kois. PS. Any info on Pond fish would be much apreciated! Should I put some gold fish in? Do they Interact ok with the Koi? I have suggested the clients turn off the pump when they feed the fish so that the food dosnt go straght to the skimmer.