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How to rescue pond fish after ammonia-nitrogen poisoning?

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When carp, grass carp, bream, white pomfret, crucian carp, etc. are fed with pelleted feed, because the feeding amount is large, excrement and leftover feed increase, and the nitrogenous substances produced by protein decomposition increase accordingly. If even slightly careless, these fish will suffer ammonia-nitrogen poisoning, which at best affects normal growth and at worst causes the death of the fish. The identification and rescue methods for ammonia-nitrogen poisoning in pond fish are described below. I. Identification of poisoning 1. Occurrence characteristics. Ammonia-nitrogen poisoning has no distinction of season, morning or evening, or good or bad weather, and is mostly seen in adult fish

When carp, grass carp, bream, white pomfret, crucian carp, etc. are fed with pelleted feed, because the feeding amount is large, excrement and leftover feed increase, and the nitrogenous substances produced by protein decomposition increase accordingly. If even slightly careless, these fish will suffer ammonia-nitrogen poisoning, which at best affects normal growth and at worst causes the death of the fish. The identification and rescue methods for ammonia-nitrogen poisoning in pond fish are described below.

I. Identification of poisoning

1. Occurrence characteristics. Ammonia-nitrogen poisoning has no distinction of season, morning or evening, or good or bad weather, and is mostly seen in adult fish ponds, high-yield ponds, densely stocked ponds, and fish ponds that can be filled with water but cannot drain it.

2. Symptoms of poisoning. The fish breathe rapidly and swim about wildly. Afterwards they swim slowly and become numb and weak; furthermore, the body darkens, the gills turn black, the oral cavity turns purple, and mucus increases; finally, vitality is lost, and they slowly sink to the bottom and die.

3. Increasing oxygen is ineffective. After ammonia-nitrogen poisoning occurs in pond fish, when the aerator is turned on, the pond fish scatter and avoid it, not daring to come near. After splashing an oxygen-increasing agent, the floating schools of fish show no reaction at all.

II. Rescue measures

1. Add fresh water in a timely manner to reduce the ammonia-nitrogen concentration in the original pond and prevent the poisoning from worsening.

2. Splash salt to prevent ammonia nitrogen and nitrate nitrogen from continuing to invade the fish blood. For every 667 sq m of water surface, 17 kg of salt can be used.

3. Spread zeolite powder and maifan stone powder to adsorb some harmful gases and toxic substances at the bottom of the pond.

4. After the poisoning has been alleviated, a fungicide should be applied to the water body for sterilization to prevent infection by pathogens.

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