Enter on the left side of the door while aiming down and freeze the fish immediately.

Entrance condition:

{
  "comeInNormally": {},
  "comesThroughToilet": "no"
}

Requires:

{
  "notable": "Room Entry Fall onto Frozen Fish"
}
"h_canNavigateUnderwater"
"canPrepareForNextRoom"
"canTrickyUseFrozenEnemies"
{
  "or": [
    {
      "and": [
        "Wave",
        "Plasma"
      ]
    },
    {
      "and": [
        "Plasma",
        "Charge"
      ]
    },
    {
      "and": [
        "Wave",
        "Spazer",
        "Charge"
      ]
    }
  ]
}