| Season | # | Premieres | ||
|---|---|---|---|---|
| Season premiere | Season finale | |||
| 1 | 20 | May 1, 1999 | September 15, 2000 | |
| 2 | 20 | |||
| 3 | 20 | |||
| 4 | 20 | |||
| 5 | 20 | |||
Season 1: (1999-2000)[]
| # | Episode | Airdate |
|---|---|---|
| 1 | Help Wanted | May 1, 1999 |
| Reef Blower | ||
| Tea at the Treedome | ||
| 2 | Bubblestand | July 17, 1999 |
| Ripped Pants | ||
| 3 | Jellyfishing | July 31, 1999 |
| Plankton! | ||
| 4 | Naughty Nautical Neighbors | August 7, 1999 |
| Boating School | ||
| 5 | Pizza Delivery | August 14, 1999 |
| Home Sweet Pineapple | ||
| 6 | Mermaid Man and Barnacle Boy | August 21, 1999 |
| Pickles | ||
| 7 | Hall Monitor | August 28, 1999 |
| Jellyfish Jam | ||
| 8 | Nature Pants | September 11, 1999 |
| Opposite Day | ||
| 9 | Sandy's Rocket | September 17, 1999 |
| Squeaky Boots | ||
| 10 | Culture Shock | September 18, 1999 |
| F.U.N. | ||
| 11 | MuscleBob BuffPants | October 2, 1999 |
| Squidward the Unfriendly Ghost | ||
| 12 | Scaredy Pants | October 28, 1999 |
| I Was a Teenage Gary | ||
| 13 | SB-129 | December 31, 1999 |
| Karate Choppers | ||
| 14 | Sleepy Time | January 17, 2000 |
| Suds | ||
| 15 | The Chaperone | February 12, 2000 |
| Employee of the Month | ||
| 16 | Valentine's Day | February 14, 2000 |
| The Paper | ||
| 17 | Arrgh! | March 15, 2000 |
| Rock Bottom | ||
| 18 | Texas | March 22, 2000 |
| Walking Small | ||
| 19 | Fools in April | April 1, 2000 |
| Neptune's Spatula | ||
| 20 | Hooky | September 15, 2000 |
| Mermaid Man and Barnacle Boy II |