How to raise grass goldfish?

Grass goldfish commonly known as red crucian carp or gold crucian carp, strong physique, strong adaptability, wide diet, easy to raise, body color in addition to red, there are red and white flowers, flowers, etc., suitable for large areas in parks and natural waters, can also be raised in the courtyard tank and aquarium, let's take a look at how to raise grass goldfish!

How big can grass goldfish grow?

Carassius auratus has strong physique, strong resistance and adaptability, wide diet, no need for fine management, and easy feeding; if the bait is sufficient and grows fast, the three-year-old weight can reach more than 500 grams, the body length is about 30 cm, and the longest can be up to 50 cm.

How long is the life span of grass goldfish?

The growth life of grass goldfish mainly depends on the environmental conditions of feeding, generally speaking, the average life span of grass goldfish is 10 years.

What food does grass goldfish eat?

1. Animal bait

① water flea: commonly known as fish and insect. It has brown, red-brown, gray, green and so on. Fish and insects grow seasonally and can be divided into summer insects and winter insects. Summer insects multiply in large numbers before and after Ching Ming Festival, with blood-red body color, large individuals, large number and high nutritional value. Most of them live in flowable river water. The number of winter insects is small, the body color is blue and gray, and the nutritional value is low. Most of them live in still water ponds or lakes. Fish and insects are the main bait for freshwater ornamental fish, and goldfish and tropical fish feed on it all their lives.

② water earthworm: also known as red filariasis, red nematode, belonging to annelid aquatic oligochaeta, bright red or bluish gray body color. Most of them live on the bank of the river basin or in the sludge at the bottom of the river, dense with the sludge surface, one end is fixed in the sludge, the other end of the sludge quivers in the water, as soon as they encounter alarm, they immediately withdraw back to the sludge. The nutritional value of water earthworm is very high. It should be rinsed repeatedly in clean water before feeding. It is not only the favorite food for goldfish and koi, but also the main food for eel seedlings. After the low tide of the Huangpu River in Shanghai, there are a large number of water earthworms in the sludge on the bank, and a large number of people salvage it every year in the spring and autumn season.

2. Plant bait

① Wuping: commonly known as rootless duckweed, Chlorella, it is a perennial floating plant, living in still water ponds or rivers for many years. According to relevant information, dried Wuping contains up to 45% protein, as well as a variety of vitamins and trace element cobalt, which is an auxiliary bait for freshwater ornamental fish. Every autumn, when there is a shortage of fish and insects, Wuping is often used as a substitute for bait.

② Chlorella: the color of Chlorella is bright green, the individual is similar to millet in the north, each grain is the size of millet, and contains high protein, fat, vitamins and trace elements, etc., with high nutritional value, Chlorella is a good green feed for goldfish, such as mixed with animal feed, can effectively promote the rapid growth of fish. Chlorella mostly live in still water ponds or rivers, they are more than Wuping mixed growth, simple growth of Chlorella in the natural waters is relatively rare.

③ planktonic algae: there are many kinds of planktonic algae, including Chrysophyta, Xanthophyta, dinoflagellate, diatom, Euglenophyta, Chlorophyta, cyanobacteria and so on, some of which are auxiliary bait for ornamental fish. According to relevant data, fish fry can be fed with green or blue water containing algae, and the effect is also very good.

3. Artificial pellet feed

In view of the seasonality and quantity instability of fish natural bait restricts the normal survival and development of fish, so processed fish bait arises at the historic moment. According to the species, size and growth needs of different stages of fish, they reasonably arrange the formula of nutrients, adopt the mechanism to produce production lines, process, shape, and dry one-stop, and produce pellet feed of species specifications with comprehensive nutrition. It can completely replace natural bait. The common raw materials of artificial pellet feed are fish meal, egg pupa powder, barley flour, wheat bran, yeast powder, vitamins, green feed, etc., which are mixed in a certain proportion and processed into pellet feed of various sizes. Artificial pellet feed is the auxiliary food of goldfish and the best substitute when natural food is scarce, and it is also the main food of red crucian carp and brocade carp.