Bacterial root rot is a severe condition affecting fiddle leaf figs' roots. To treat bacterial root rot, follow these steps: 1. Remove the plant from its pot: Gently remove the fiddle leaf fig and carefully inspect the roots. 2. Trim-affected roots: Trim away soft, slimy, or discolored roots using sterilized pruning shears. Make clean cuts to remove the infected portions. 3. Apply an antibacterial treatment: Use a suitable antibacterial solution or a commercial bactericide to treat the remaining healthy roots and the root ball. Follow the product instructions for proper application. 4. Repot the plant: Choose a clean pot with good drainage and fresh, well-draining soil. Repot the fiddle leaf fig, ensuring not to bury the stem too profoundly. 5. Adjust watering practices: After repotting, adjust your watering practices to ensure the soil is neither too wet nor too dry. Allow the top inch of soil to dry out before watering again.