So here we go again. We had a beautiful little pond about 800g with a little waterfall, various sizes of goldfish, and lots of floating and potted plants. As well as a large piece of driftwood the dog had brought home. Everything was just perfect. Till one day, when we were out, the dog must have gotten bored and decided she wanted her driftwood back. She must have had a blast in the pond. Her driftwood was 3/4 of the way out and most of the floating plants where shreded or gone The fish were all there just a little shaken up. We cleaned things back up but without most of the floaties the pond surface was very exposed. This is when Mr Heron decided to move into our life and cause us and our fish grief. We started noticing the bigger fish (6-8") were disappearing. Still did not know you the culprit was. Until we discovered a big, at least 2x2, bird poop on the deck I thought it was from a teradactil!! Guess just saying thanks for lunch. Sightings became more frequent. We put a portable gazebo, zipped right up, over the pond. Still got in somehow till he depleted 90% of the larger fish. Checking for survivors we found there was still quite a few of the smaller, so we brought them into the house and got the 400g filled up.