There are indeed many aspects that need to be paid attention to in small fish tank farming, and I will go into detail below to pay attention to some of the things that need to be paid attention to. First of all, when choosing fish species, we need to choose small fish that are suitable for small fish tank culture, and choose fish species that are good to keep. Some noble fish that are too squeamish are not suitable for small tanks because they require more care and special water quality conditions. Therefore, when choosing a fish species, we need to think carefully to ensure that we choose the right fish species for a small fish tank. 
Secondly, water treatment is the key to fish farming. The water quality of the fish tank is very important for the growth of the fish, and the water needs to be changed regularly and kept clean and fresh. If the water quality is not good, it can cause the fish to get sick or die. Therefore, we need to check the water quality regularly and take measures to keep the water quality stable and suitable. In addition, the choice of feed is also an important factor in fish farming. Choose a feed that is good for the fish and do not overfeed it to avoid water pollution. Overfeeding not only causes the fish to get sick, but it also affects the water quality, which in turn affects the growth of the fish. 
In addition, the density of the fish needs to be properly controlled. If the density of the fish is too high, it can cause the fish to grow slowly or get sick. Therefore, when raising fish, it is necessary to reasonably control the density of fish according to the size of the fish tank and the type of fish. Finally, in order to facilitate daily management, we can use some fish farming artifacts, such as fish tank toilets, automatic fish feeders, etc. These tools can help us better manage the fish tank and reduce our workload. In short, reasonable selection of fish tanks and water treatment, proper control of feed and density, and the use of fish farming artifacts can make the fish in the small fish tank grow healthily. At the same time, we also need to regularly inspect and clean the fish tank to ensure that the fish grow in a clean and comfortable environment. 