The culture method of stickleback:

Change the water every two or three days. They are all gentle fish.

If it's live fish. Before changing the water, it is best to pick up a basin of tap water and let it dry for about a week before changing the water.

After you buy it, put the fish in the water with the plastic bag, and you can put the fish in it in about 5 minutes. Feed it at 9: 00 am at the earliest, at noon 12 at the latest, and then feed it around 4: 00 pm. You can use live fish food or bait. Don't throw too much bait. Too much bait will affect the water quality, because live fish food will consume a lot of oxygen in water, and bait will breed harmful substances.