There is no difference between floating up and sinking down of fish food. Usually, the choice should be made according to the feeding habits of the fish. Generally, what floats up is puffed, and what sinks down is cooked. It should be noted that if there is a filter at the bottom of the tank, the sinking feed can easily be sucked away, so it is only suitable for feeding floating feed.
1. Cleanliness and hygiene: For fish, most diseases in feeding enter from the mouth, so we must pay attention to the cleanliness and hygiene of feed. If it is artificial feed, it is very safe without special treatment, but if you feed live bait, there will inevitably be bacteria and parasites, which need to be sterilized before feeding.
2. Suitable size: Different types of fish have different sizes, so you should pay attention to the size of the feed. If the feed is too small, the fish can't see it, and if it is too big, it can't be swallowed. And feed into the water, within a day it is best to maintain the original shape, do not use the feed scattered after the water, otherwise it will pollute the water quality.
3. Adequate nutrition: If the nutrition of the fish feed is not enough, it will also be reflected in the growth of the fish. If the nutrition is single and the taste is general, the fish is easy to be picky. If a variety of nutrients can be supplemented, the growth of fish will be more robust, the incidence of disease will be much less, but also help its hair color.
4. Convenient preservation: Another problem with fish food is how to preserve it. Artificial feed needs to pay attention to its shelf life. If it is self-made feed, it is best not to do too much. After it is done, the excess can be stored in the freezer, but not for too long.