That's great! Dogs make wonderful companions, and having a school of fish can be a fascinating and calming addition to your home. Taking care of both pets requires different responsibilities, so here are some tips for raising a dog and maintaining a school of fish:

1. Dog Care:
- Provide a balanced diet: Feed your dog high-quality dog food that suits their age, size, and breed. Consult with a veterinarian for specific dietary recommendations.
- Regular exercise: Dogs need daily exercise to stay healthy and happy. Take your dog for walks, play fetch, or engage in other activities that suit their energy level.
- Training and socialization: Train your dog to follow basic commands and ensure they are well-socialized with other animals and people.
- Regular veterinary care: Schedule regular check-ups, vaccinations, and preventive treatments like flea and tick control.
- Grooming: Depending on your dog's breed, grooming needs may vary. Regular brushing, nail trimming, and bathing are essential for their well-being.

2. Fish Care:
- Suitable tank setup: Research the specific needs of the fish species you have and set up an appropriate tank with proper filtration, lighting, and temperature control.
- Water quality: Monitor and maintain the water parameters such as pH, ammonia, nitrite, and nitrate levels. Regular water changes are necessary to keep the water clean and healthy for the fish.
- Feeding: Feed your fish a balanced diet suitable for their species. Overfeeding can lead to water pollution, so be cautious and follow the recommended feeding guidelines.
- Tank mates: Ensure compatibility among the fish species you choose. Some fish may not get along well with others, so research their behavior and compatibility before adding them to the tank.
- Observation and care: Observe your fish regularly for any signs of illness or stress. If you notice any issues, consult a veterinarian who specializes in fish care.

Remember, both dogs and fish require your time, attention, and care. Enjoy the companionship and the unique experiences that come with raising these wonderful pets!