Is cancelation required when Fiber fails?

What is the proper behavior to avoid resource/memory leak? Is it required/correct to cancel failed Fiber?

val someEffect: F[Unit] = //...

def someFiber[F[_]: MonadError[?[_], Throwable]](fa: F[Fiber[F, Unit]]): F[Unit] =
  for {
      fiber <- fa
      _     <- fiber.join handleErrorWith { _ =>
            //Is this cancel required?
            fiber.cancel *> someEffect
      }
  } yield ()

My concern is about cancel when handling Fiber.join error? Is it required?