A Complete Guide to Fish-Keeping Techniques: Master the Methods and Keep Fish with Ease

First, select fish that look plump with bright, gorgeous body colors, and match the quantity to the fish tank; second, set up the tank and cycle the water a week before keeping the fish; third, place the fish tank somewhere that gets 1-2 hours of sunlight; fourth, feed a mix of animal-based and plant-based foods; fifth, regularly change the water in the fish tank.

The detailed techniques for keeping fish in a home aquarium are as follows:

1. When choosing fish, pick those that look plump with bright, gorgeous body colors; these are the fish with good genes and good health. The number of fish you keep should match your tank; the ideal water-to-fish ratio should be 1000:1, and the body length of goldfish relative to the length of the tank should reach 1:10 or more, so that the water quality for keeping goldfish stays good and the dissolved oxygen level is sufficient.

2. A week before bringing the goldfish home, set up the tank and cycle the water, and put a few small fish in to test the tank and see whether it suits goldfish survival; this also helps establish a nitrifying system. A filtration system must be installed in the tank to maintain water quality. An aeration pump should also be installed so the fish can breathe better.

3. After the fish are added to the tank, place the tank somewhere that gets 1-2 hours of sunlight. This uses the ultraviolet rays of sunlight to sterilize and can also reduce disease. Fish diseases should be prevented first and treated with medication only as a supplement.

4. You need to know what goldfish eat. Although goldfish are not picky eaters, do not buy inferior goldfish food. The food includes animal-based feed and plant-based feed. Animal-based feed is rich in high protein, but it should not be fed all the time. It should also be combined with some plant-based feed so that the nutrition is balanced. If you keep fish for a long time, you can also make fish food yourself, which is both economical and nutritious. Feeding should be less rather than more; feeding 1-2 times a day is enough. That is how goldfish grow up healthy and good-looking.

5. Changing the water once a day can increase the dissolved oxygen content in the water, but do not change all of it, or the fish will not be able to adapt. Before each water change, scoop out the fish's waste and leftover food. If you can scoop it out, change 1/10 of the water each time. If you cannot scoop it out, change 1/3 of the water.

In addition, if keeping fish in a pond, pay attention to the species being mixed, the size and density of the fish, and regularly prevent and treat fish diseases.