feet apart with a stream between. the smaller being about 30 gal. As the fish grew, I knew I needed to grow bigger. Changed the 30 gal to 200 gal preformed still with the stream. The fish, koi especially got bigger and needed deeper. took the 200 gal out and had a 8 X 12 ft dug that is about 30 in deep. the upper pond flows into it directly, did away with the stream. Got rid of the goldfish, they propagated to much. Just have koi. Went thru Hurricane Rita, lost all koi but placostamus lived thru the uck. when got pond cleaned up and electricity on after 3 weeks, eventually got 3 koi. Now have 11, 8 are the babies of the original. Have sold many other babies over the past 5 years. Have a stone deck around it but will take it up this year, replace the liner as it is starting to crack and put in a composite deck around. have a nice pergola also above so water does not get to hot. There is always something you can do to improve or make your pond better. Have fun and enjoy. I love watching the koi swim around it is so relaxing.

be a bug in the flower. do as he says if that does not work then try an organic pest spray. Walmart carries a brand but I don't remember the name.