1. Reason: Guppies may swim upright because of hypoxia. Although their demand for oxygen is not high, if there is too little oxygen in the water, they will suffer from hypoxia.

2, Solution: It is best for breeders to install an oxygen pump and turn the oxygen pump on to the maximum. This will not only speed up their recovery, but also reduce their discomfort. As long as there is enough oxygen in the water, they can recover soon.

1. Reason: Guppies may also suffer from enteritis when swimming upright, because if enteritis is serious, their swim bladder will be infected and their body cannot keep balance.

2. Solution: Breeders need to give them a big white tablet bath. The dosage of the medicine can be diluted according to the instructions, and it can generally be cured in about a week. During treatment, breeders need to stop feeding and change water every day to keep the water clean.

1. Reason: Guppy may have water mold when swimming standing, and the symptoms of water mold in the later stage are tail clipping and head-up swimming.

2. Solution: Breeders need to isolate diseased fish immediately to prevent water mold from spreading to other fish. It is also necessary to soak the fish with one ten thousandth of malachite green solution, which can be relieved in about 3 days.