The reasons why guppies can be thrown away if they explode:

1. This kind of fish has a strong reproductive ability. If they are allowed to breed freely, they will easily explode.

2. If the capacity of the fish tank is exceeded, the water quality will deteriorate faster, and there will be insufficient dissolved oxygen in the water, resulting in unhealthy growth of the fish.

3. If you continue to raise them, it is likely that all the fish will die.

How to prevent guppies from breeding crazy:

1. Reduce the amount of feeding. Reduce food intake before guppies regenerate. You can tell whether a guppy is full or not by looking at its belly. Your stomach will be bulging when you are full. Don't feed the guppy too much before it's raw, and don't feed it grainy bait. Try to feed it some brine shrimp. If it is too full, it is difficult to tell whether it is about to give birth or whether it is overeating, which can mislead people's judgment. Therefore, you should pay more attention to the fish in the fish tank before feeding. Some fish have bulging bellies, so pay more attention to them. Maybe these fish are about to give birth.

2. Separate the male fish and the female fish. Put the male fish in another fish tank and separate them. This is done for two reasons, one of which is to prevent the male from eating the young. Another reason is that the female fish is in pain during the birthing process. The male fish swims here and there, scurrying around and chasing the female fish, which affects the smooth spawning of the female fish. Separating the male and female fish also allows the female to give birth to her young without being disturbed.

3. Place obstacles to isolate the female fish from the young fish. Common natural obstacles are aquatic plants and stones, but guppies have a large breeding population and require a large amount of aquatic plants. Friends who have the conditions can use aquatic plants. But I recommend that you use artificial items. You can buy a pen holder in a store or a fishing net in a fishing tackle store. Some partitions can also be used, but the edges of these partitions should not have sharp edges to prevent injury to small fish. Putting obstacles in is to give the newly born fish a safe habitat and a relatively independent resting space. A small fish has a greater chance of survival if it has a shelter. This cannot be ignored, and guppies must be raised carefully and carefully.