Crystal Flash in front of the lower-right door. Wait for the fast crab to cycle the lower half of the room twice, then place the Power Bomb to Crystal Flash just after a slow crab enters the room and is on the middle of the right ceiling. This will avoid killing the fast crab and give it just enough time to come hit Samus from above.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "direct",
    "morphed": true,
    "mobility": "immobile"
  }
}

Requires:

{
  "or": [
    "h_artificialMorphSpringBall",
    {
      "and": [
        "Gravity",
        "h_artificialMorphIBJ"
      ]
    }
  ]
}
"h_artificialMorphComplexRModeCrystalFlashInterrupt"
{
  "ammo": {
    "type": "Missile",
    "count": 10
  }
}
{
  "ammo": {
    "type": "Super",
    "count": 10
  }
}
{
  "ammo": {
    "type": "PowerBomb",
    "count": 5
  }
}
{
  "or": [
    "h_fullEnemyDamageReduction",
    {
      "and": [
        "h_partialEnemyDamageReduction",
        {
          "resourceAtMost": [
            {
              "type": "RegularEnergy",
              "count": 39
            }
          ]
        }
      ]
    },
    {
      "and": [
        {
          "resourceCapacity": [
            {
              "type": "RegularEnergy",
              "count": 199
            }
          ]
        },
        {
          "resourceCapacity": [
            {
              "type": "ReserveEnergy",
              "count": 199
            }
          ]
        }
      ]
    }
  ]
}

Dev note: This could be done with more tanks in order to end with more Energy, but this is already a good farming room.