Aquaticism is pronounced Aquati-cism and not Aquatic-ism as some might interpret it.
The table read for this episode took place on February 12, 2016.
This episode aired as a double bill with "Ain't Miss Debatin'" following immediately after on March 26, 2017. It was billed as an hour-long episode by Fox.
Both opening sequence running gags pay homage to King of the Hill. The Store Next Door is Pro-Pain Accessories Dominatrix Supplies, referencing the proclamation "I sell propane and propane accessories" used by Hank Hill to describe his profession. The Pest Control Truck is Dale's Dead-Bug, an extermination business run by the character Dale Gribble in the show.
A rather accurate rendering of the actual IRS website is seen in this episode. The form needed to file for not-for-profit tax-exemption is Form 990-N.
The notes on the Church of Aquaticism events noticeboard include; Singles Mixer, Mr. Limpet's fish chat, and Splash Bash!
The dance Teddy does in this episode is the "Tuscaloosa Twister", a likely reference to the tornado that struck Tuscaloosa and Birmingham in Alabama on April 27, 2011, resulting in 64 fatalities.
Flanley's computer uses the Microsoft Windows XP operating system which as of April 8, 2014, is no longer supported.
In a promotional image for this episode, Teddy appears to be wearing gloves at the singles mixer but in the broadcast episode, he isn't.
Even though one of the jellyfish in the final scene is dead, all the jellyfish are shown swimming before the last two shots of the tank.
Louise uses Judy's computer mouse with her left hand, Louise is usually depicted as being right-handed.
Tina's barrette is missing in the shot where Louise advises Flanley that it's not 'stinging season' for the jellyfish.