Hello all, I am new here and new to fish in general (long time reptile/amphibian guy)...I just moved into a new house in Mexico City with a 320 gallon in ground fish tank/pond. It was used to keep fish previously (years ago), and I am looking to put it back into use. I still have some work to do (repaint/seal it), and was intending on putting koi in it. It is not very deep, but it's about 10 feet long by 4 feet wide (I will try to get a pic up this weekend). I am looking for advice/suggestions on what kind of fish (if koi isn't the best choice, or if they can be kept with another type of fish as well) to populate it with as well as what to go with as far as pump/filter set up. I have never had fish before, and I will certainly be doing more research before I am ready to set it up.