Why are there always black spots in the water where tadpoles are raised? What are the black spots? Tadpoles can be fed in glass bottles or jars, and the containers should be placed in sunny places. Tadpoles should be fed with seaweed, chopped vegetable leaves, cooked egg yolk or earthworm powder, bread crumbs, goldfish feed, etc. Not too much at a time, the water should be changed every few days. Be careful when changing water. Don't hurt tadpoles. If the water is too mixed, change it in time. Some aquatic plants should be put in the glassware for raising tadpoles. Aquatic plants are not only for beauty, but because they can constantly absorb carbon dioxide from water and release oxygen needed by tadpoles to supply their breath. Change water for tadpoles frequently and replenish oxygen constantly. Remove dead tadpoles and other food residues in time, and change fresh water every three or four days instead of well water. If it is tap water, it is best to put it in the sun 12 hours before changing it. When tadpoles start to tail, put something in the container, so that when tadpoles become frogs, they can surface to breathe and rest.
If thyroxine is added to the water species for raising tadpoles, will tadpoles become abnormal in advance? Yes! You can ask the biology teacher that frogs are very small. They are little frogs.
I raise Japanese gilded fish. Do I need pebbles and aquatic plants? What aquatic plants should be put in? Bottom sand can be put in a goldfish bowl. When the grass is raised, it will be eaten by goldfish.
Why do tadpoles and frog eggs only appear where there are aquatic plants? 1. Tadpoles can't grow without water, so eggs must be laid in water.
Second, aquatic plants can cover (hide) and fix frog eggs.
Third, places with aquatic plants are often places with abundant food.
In order to make tadpoles develop into frogs in advance, what can be added to the raised water must be thyroxine. Physiological function: Thyroxine can promote the growth and development of small animals and promote energy metabolism (increase basal metabolism and oxygen consumption).
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Today is Sunday, and my mother took me to the riverside park to play. There are swings, slides and water treadmills that I like ... but the tadpoles in the water attract me most. My friends and I can't help catching tadpoles in the water, one, two or three. ...
After a while, there are many tadpoles in the small bottle. Looking at the little tadpole in the bottle, I suddenly found that the little tadpole looks very strange, with a big head and a round head. On the way home, I asked my mother, "Mom, why is the tadpole's head big or round?" Mother said, "son, although you are fun, you can be good at observing while playing." He is a good boy. " After listening to my mother, I smiled happily.
Why are tadpoles in shallow water? The water temperature in shallow water under sunlight is high, and there are more plankton, which is suitable for tadpoles to prey. At the same time, big fish rarely go to shallow waters, and there are relatively few natural enemies!
Why do tadpoles only swim near rocks? No, no, no, he swam to the front dike because there were fish that ate tadpoles in the deep water. He couldn't breathe, dive or have enough oxygen in the deep water.
What's the difference between a frog's tadpole and a toad's tadpole? (It is better to add a picture. ) the appearance is different. The epidermis of toad tadpoles is black and sticky; Frog tadpoles have gray skin and slightly sticky hands; Toad tadpoles mostly live in ponds and hatch early. Frog tadpoles mostly live in fields with water in March and April, and the incubation period is about one month later than that of toad tadpoles. In April and May, when you see a toad's tadpole, there is no frog's tadpole. When I saw the frog's tadpole, the toad's tadpole had degenerated to the ground.