Fish Hooks was cancelled in 2013 and would not be renewed for a fourth season. The final episode aired April 4, 2014.

Why was Fish Hooks discontinued?

Disney simply decided to not renew it for another season, which is actually the case of all of their “cancelled” shows, and I believe everyone on board felt it was time to end it. I mean, your average American high school career isn't supposed to last more than roughly 4 years, which was how long Fish Hooks lasted.

Do Milo and Oscar have parents?

There Are No Adults: Milo and Oscar were explicitly said to have had no parents in Season 3, but an "Aunt Ida" is mentioned during Season 1. Only a handful of the cast have had at least one adult relative shown. Third-Option Love Interest: Angela, to Oscar.