It is better to raise goldfish, tang fish, sole catfish, medaka and koi fish in indoor rockery fish pond. These fish belong to wide-temperature fish, which have low requirements on water temperature and water quality, so they do not need heating and are very difficult to raise. Among them, goldfish, sole catfish, tangyu and medaka are relatively small in size, so they can be raised more, but koi fish are large in size, so they cannot be mixed, otherwise koi fish will eat small fish.

1. Feeding: Fish in fish pond should be fed regularly and quantitatively. According to the different feeding habits of fish, we should choose suitable feed. If it is herbivorous fish, it is generally fed with plant feed, carnivorous fish should be fed with some meat, and omnivorous fish are mainly fed with pellet feed.

2. Change water: In order to ensure the cleanliness of the fish pond, change water after a period of time. The fish pond had better have special water inlet and outlet, so it is more convenient to change water, and the amount of water it can accommodate is still very large. It takes too much time and energy to change pots like family fish farming.

3. Oxygenation: If you want to avoid fish floating without oxygen, it is best to oxygenate the fish pond. Especially in summer, the overall dissolved oxygen drops due to the rise of temperature. For example, oxygenation with air pumps and other equipment can ensure the breathing of fish.