Bea, one of the three fish BFF's including Milo and Oscar at Fresh Water High, freaks out literally when her annual school photo is taken, for she claimed that it was taken badly. In the attempt to bring it back fearing that her expected future as an actor would be in jeopardy by a single bad picture, she distracts her friend and school photo editor Pirahnica, who claims to be in love with Oscar, by making the poor fellow take her on a date. After avoiding dangerous obstacles set by Pirahnica, Bea and Milo find the pictures as they see Bea's taken one. Milo discovers that there was nothing wrong with it. Bea had known that, but she thought that her look wasn't suited for an actor. After Milo talked some sense into Bea by proclaiming that she was perfect the way she was, she suddenly remembers Oscar and stops his nightmare with Pirahnica by stating that she and Oscar were dating. After the nutty clam left, Oscar was happy that Bea felt the same love he felt for her, only to figure out that she was acting.
When Bea goes on several dates and Milo gets a date, Oscar feels he is the only one without a girl so and pretends to have a girlfriend named Doris Flores Gorgeous, but he struggles to keep it a secret from Milo and Bea. He tells Milo and Bea that Doris lives in Fish Niagara Falls so the friends try to "cheer up" Oscar by taking him there. When they get there, there actually is Doris who turned out to be Clamantha.
When Jocktopus's birthday comes up, he warns every student in freshwater high that if they don't bring a gift for him, they will get "pounded" by him. When shopping for said gift Oscar suggests getting him money, which results in Oscar himself being given as a gift by his friends who don't want to be pounded. Bea and Milo try to get him back.
Milo does not have any money, unlike Oscar and Bea. They tell him to work but he is lazy and stubborn so he loans money from Randy Pincherson and then Randy treats him he is going to pinch Milo because he used up all the loan. Oscar and Bea give their money to Randy and become very angry with Milo, abandoning him as a friend. Milo decides to work but at the job, he thinks it is very hard just to put the cash into the register. He has the money for the tickets to a concert and the money he owes to Oscar and Bea.
When Clamantha’s crush on Oscar begins to overwhelm him, he thinks his problems are solved when she develops a crush on his laptop, mistaking it for a fellow clam. When the battery starts to die, Clamantha is upset that her new boyfriend is ignoring her and Oscar must find a way to make things right.
Oscar bores everyone in Freshwater High School with his morning announcements, so Bea helps make the show more entertaining, but after Oscar realizes that she starts making the morning announcements not about school and decides to quit, but doesn't get his chance to announce the cafeteria being closed for repairs.
Oscar discovers his college dreams and aspirations are put in jeopardy because of his lack in extracurriculer activities, so Bea and Milo try to find Oscar the perfect club, and find Clamantha fighting with her arch-nemesis, Clamanda, and Milo, Oscar, and Bea's friends join Clamantha's cheerleaders team after her team gets brought by humans, but Bea turns out to be in Jumbo Shrimp and Albert Glass' map club so she is unable to help out the team. This is a two-parter, Disney lists as episodes 133 & 134
The class is on a field trip to PuPu Goodtimes Amusement Park and Bea, Milo and Oscar all have individual goals in mind. Bea is determined to get on a ride with Steve Jackson, Milo is embroiled in a macho man "ride-off" with Randy Pincherson and Oscar joins forces with Jumbo Shrimp and Albert Glass to win a Galactic Fish Battles Limited Edition Fork Saber. It's all fun times at PuPu Goodtimes!
Oscar's impression of the Queen of Fish England is so similar that even Mr. Mussel's, who is a big admirer of the Queen, cannot tell the difference. The gang goes along with the ruse, until Oscar is mistaken for the Queen by a bridal party and swept away to "his" royal wedding. The day then escalates into a "Slow Jams Rap Battle" between Milo and Mr. Mussels to win the hand of the fair Oscar.
Jocktopus reveals that it is his father's dream for Jocktopus to sing in a musical play about potatoes. So during the Freshwater High musical play, "Potatoes In Winter," He goes in the play to sing but gets nervous. Note: This is in two parts, usually listed as episodes 138 & 139. Disney still lists this as the season final, even after showing 3 more episodes after it.
It's Halloween in Freshwater, and the gang is eager to get boatloads of candy, but Jocktopus is beating trick-or-treaters up and stealing their candy. To get their sweets and not get beaten up by Jocktopus, they journey outside the tanks to trick-or-treat. It's going to be a wild Halloween for Milo, Oscar, and Bea! Note: This was originally scheduled to be episode 201.
Bea and Oscar start out for the cruise of a lifetime, but the Geckos have other ideas. Milo and his brigade of buccaneers come to the rescue to recapture the ship and restore the vacation plans.
Milo gets carried away when Bo Gregory enlists him and his friends help for a cattle fish drive. Things go more than wrong and the cattle fish stampede out of the tank. Milo must cowboy-up and save the day.
After a big fight between the Joe brothers Milo gets the idea that the same thing could happen between him and Oscar, so he creates a holiday to celebrating their friendship.
When Bea's childhood doll resurfaces, Bea realizes how creepy the doll was and pawns it off on Milo and Oscar. But no matter what she does to try and rid herself of the doll, it keeps magically reappearing and haunting her.
When Milo gets a free milkshake, he wants the excitement and the drink to last forever, but Bea and Oscar are forced to intervene after Milo names the milkshake Emily and insists on spending quality time with it
It's game night at Oscar and Milo's but when a noisy gang of spiders move in next door, the fish have to find a way to quiet them down before their evening is ruined and its game over.
After Principal Stickler goes missing, Bea takes over as school principal. However, some of her new policies upset Nurse Fishington, who encourages Bea to play by her rules. Fishington is revealed to be a robot that Stickler built so he wouldn't have to do his job. Can Bea save the school before Fishington ruins it forever?[
Bea gets a job promotion, however, her excitement is short-lived after she discovers her first responsibility is to let one of her co-workers go. And it doesn't help that Milo and Oscar are her co workers. After putting each employee through a series of tests, she ultimately decides the best thing to do is find them all new jobs
Albert has a crush on Esmargot and comes up with a plan to act and live like a vampire to win her affections. Unbeknownst to Albert however, Esmargot is a secret vampire slayer set out to rid the world of all vampires
Bea tries to play matchmaker when she learns that Mr. Baldwin has a crush on Ms. Lips.
Milo tries to find a perfect birthday present for Bea; Milo causes the school's lunch lady to be fired when he puts hair in his food as a prank.
Milo decides to get a free lunch by putting one of Oscar's hairs in his lunch, then pretending he finds it not knowing this will get the lunch lady fired.
Oscar and Shellsea need to work on a project.
Milo begins to freak out when he realizes that his chances at becoming "Freshwater's" Catch of the Month Calendar Cover Dude" are slim to none when his scales begin to fall off, so he tries to find a solution to his flaky problem and learns in the process that he's not the only one with body issues.
Milo supports his bingo buddies at the Grandma games.
When Koi feels pressure to fit in, she lets the girls believe that she did something daring.
Bea is challenged to a ski-off
The fish want to party at the Loxbury party place but, are to young. so they use the empty space in the fish diner to use for their party.
With fish prom coming up, everyone at school obsesses over it, except for Angela, Oscar's girlfriend, who prefers to play video games. Oscar wonders if Bea is really the right girl for him. Meanwhile, Bea goes with Steve Jackson, but he is accidentally locked in a closet.
Milo is convinced that a new hamster TV show called “The Milo Show” is about him, but when the Milo character turns out to be a klutzy nerd, he heads to Hamsterwood to clear his name.
When a wealthy Chicken hires Bea to give swimming lessons to his difficult teenage daughter, she soon finds that the task is easier said than done.
Oscar's dream date with Bea is threatened when their friends tag along to hear him perform live.
Bea's overzealous good intentions create chaos at the annual fair.
When Bea’s dad lands a new job in Fish Phoenix, the gang sets out to find him a better job in Freshwater, so Bea won’t have to move away.
When Albert’s voice starts to change naturally, it seems like he’s finally going to be treated like a man. But when his new voice abandons him at the worst possible moment, he’ll have to learn that it’s not the voice that makes the man, but the man that makes the voice
When Fishington decides to cut the Drama Department, Bea and her friends decide to venture into Fishington’s brain to change her mind or else they’ll lose the department forever.
When Jumbo begins dating Oscar’s ex-girlfriend, things quickly turn awkward between the two, especially when Oscar’s attempts to make peace with his ex backfires and he appears to still be in love with her.
When Milo and Jocktopus are invited on a police ride-along, they are convinced it means they’re real cops and set out to prove it.
Milo wakes up in class to discover that everyone at Freshwater High has turned into a human! As he prepares for Shellsea’s epic Pool Party, Milo has to figure out what’s real and what’s not as he desperately tries to keep his party king reputation intact!
Mr. Baldwin wants to propose to Ms. Lips, but she's leaving on vacation to Flip Flop Island for the summer, so the kids come up with the perfect excuse to follow her – field trip!
Weary from his new duties as a father, Mr. Baldwin hands his babies out to the class to help babysit for the week. But after being paired together, Oscar and Bea quickly realize temporary Parenthood may tear them apart.
Milo joins Oscar, Albert, and Jumbo in their fantasy role-playing game, and fight for the rights of bunnies everywhere.
Milo befriends an adorable pony fish but worries that his manly friends won't understand.
Brandon Bubbler's manager sends him to Freshwater High to become a regular teenager.
Jocktopus' dad wants Jocktopus to create his own pizza.
Ms. Lips brings Baldwin to the racetrack to meet her disapproving parents. To prove he's man enough to marry her, Baldwin enters a race.
The school along with Brandon Bubbler go to a camp, where Bea tries to get Bubbler to date her. Meanwhile the kids try to escape the camp.
School gets cancelled for a day, and Milo wants to have some of in the snowy algae. But when no one wants to hang out with him, he hangs out with twins Dan and Ann Chovi.
A new shop is prepared for construction, and the only thing in the way is a plastic tree, one that Bea is planning to protect in the name of her childhood. But upon hearing news of who is in charge of the grand opening, she and Shellsea form a plan to save the tree and have the store built. The plan soon goes awry and they must try to get the tree back
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Milo throws a party on a party bus
When Oscar is feeling down and left out, milo gives him a taste of his personality
When Finberley delivers the taco to the wrong customer, things go crazy when everyone chases the taco
When Shellsea says she has a "strange" friend, they sort out to try to set her up on a date with Michael, It is revealed that Shellsea's weird friend was Michael
It’s the school’s picture day and Oscar, Milo and Bea try to make their picture the best. While Oscar's photo turns out bad with the flash reflecting off of his braces and Milo's turning out a little weird, Bea tries to make it perfect. When the photo is taken and Bea does not appreciate it, she and Milo infiltrate Clamantha's yearbook office while Oscar takes Clamantha on a date in order to keep her away from the yearbook office.