Whether it is American crayfish or Australian crayfish, their diets are very mixed. And they are rectal and eat a lot of the time. Attentive players can often see them pulling while eating, looking very cool.
Often feed on fallen leaves, bark, aquatic plants, and snails in the native place. Due to its slow movement, fish are rarely caught in large environments. Occasionally encountering fish and shrimp corpses is naturally a delicacy in their mouths. Therefore, crawfish are scavengers. But that's not to say they like to eat rotten things, and that's not the way to go. Because they need to continuously absorb biological protein and calcium.
In the aquarium, the crayfish's diet is naturally regulated by the owner. This makes the crawfish's foraging process less arduous. Let's talk about my views on feed.
The first is live food: red worms, mealworms, river prawns, fish. I have seen some of these being used to feed crawfish.
First of all, I never like to feed live animals, because wild animals can carry germs, even parasites and eggs. Some people will sterilize them with salt water before feeding, but this is not a safe practice.
It is worth noting that mealworms are more juicy (this metaphor seems a bit disgusting).
Moreover, red worms and mealworms lack chitin and calcium, which is of little nutritional significance for crayfish.
River shrimp is more reliable, rich in calcium and chitin, and rich in biological protein. Now I want to focus on that.
Dried river prawns sold in barrels are a good choice. First, soak the dried prawns in hot water and stir, and after ten minutes, some of them begin to sink to the bottom. Those that do not sink should be squeezed on the bottom of the water, and they will sink after squeezing out the air bubbles. Then you can feed.
There are also a few senior players feeding some seafood and shellfish, and it seems to be working well now. But it is not recommended for most people to use it, after all, it is not easy to control.
Vegetables are also very tempting for crayfish, some people are feeding carrot sticks, some people are feeding spinach. As long as there is less juice, it is more reasonable.
But no matter what you feed, remember one last thing: don't let the leftover food sit in the bottom sand for too long. Otherwise, it is easy to produce several kinds of harmful bacteria, which will erode the shell of the crayfish. Commonly known as shell disease. Crawfish die when germs invade internal tissues. The initial symptoms are dark spots on the carapace. This will be elaborated on later.