Very nice. I forgot that the omiciean treasures could be fished up, and only spent a day there.
About the fish in sulani though; you don't have to take the boat out anymore since the last fishing update, you can catch them in the fishing spot near the sunken ship as well, and possibly in other spots too. A lot of the fish that used to be locked to one location or another can be found in sulani now, oddly enough. I even got some granite falls and Salvadorian fish there.
I also managed to get luna fish outside of the full moon; ending up with 50/53 fish for both aquarium and mounted.
I also utilized a learn from the klepto challenge, gave one sim the trait that makes them immune to being embarrassed, and sold as much as possible at the finchwick fair for the 25% sell increase.