How can I effectively repair a fish tank leak to ensure the safety and well-being of my aquatic pets?

To effectively repair a fish tank leak and ensure the safety of your aquatic pets, follow these steps:

1. Drain the tank completely to access the leak.
2. Clean and dry the area around the leak thoroughly.
3. Use an aquarium-safe silicone sealant to patch the leak.
4. Allow the sealant to cure according to the manufacturer's instructions.
5. Refill the tank with water and monitor for any further leaks before reintroducing your fish.