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Aquaculture FAQ:
20 frequent issues in shrimp farming

There are several common problems you encounter in aquaculture where you want to find out the possible solutions. 

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点击下面链接，查看虾养殖常见问题及解决方案。

Click the below videos in Chinese to find out the possible solutions.

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Click the below videos to find out the possible solutions:

Shrimp farming common problem 01: Acidic soil and low pH

Problem 1:

Acidic soil and low water pH (under 4) cause serious problems in aquaculture.

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Shrimp farming common problem 02: Benthic or filamentous algae during water preparation

Problem 2:

Benthic or filamentous algae during water preparation.

Watch the video on what to do
Shrimp fariming common problem 03: Turbid water post-stocking

Problem 3:

Turbid water prevents a healthy phytoplankton bloom and blocks the shrimps’ gills.

Watch the video on what to do
Shrimp farming common problem 04: Unstable bloom color during water preparation

Problem 4:

An unstable bloom may indicate problems with alkalinity, pH and/or nutrient levels.

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Shrimp farming common problem 05: Frequent plankton over-blooms at later stage of culture

Problem 5:

Over-blooms will create problems with oxygen levels, black gill and H2S.

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Shrimp farming common problem 06: Water color turns brown or red-brown with low transparency

Problem 6:

A water color change indicates the plankton is starting to die, or the species is changing.

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Shrimp farming common problem 07: Color of water turns orange

Problem 7:

A low pH limits plankton growth, and makes hydrogen sulfide more toxic.

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Shrimp farming common problem 08: Black sludge

Problem 8:

Black sludge indicates anoxic bacteria that produce toxic hydrogen sulfide gas.

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Shrimp farming common problem 09: Bad odor

Problem 9:

Bad odor can indicate a problem with hydrogen sulfide or VFAs.

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Shrimp farming common problem 10: High level of ammonia

Problem 10:

The level of toxicity of ammonia rises with temperature and pH.

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Shrimp farming common problem 11: High nitrite

Problem 11:

Nitrite becomes more toxic in a pond with low salinity.

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Shrimp farming common problem 12: Sudden decrease in feeding

Problem 12:

A drop in feed consumption means longer culture time and potentially lost profits.

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Shrimp farming common problem 13: Pink gill or shell

Problem 13:

Pink shell or gill indicates stress. Something is wrong in the pond environment.

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Shrimp farming common problem 14: White muscle without mass mortality

Problem 14:

White muscle is abnormal. It indicates stress or disease.

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Shrimp farming common problem 15: White feces

Problem 15:

White fecal strings indicate a bacterial or parasite infection.

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Shrimp farming common problem 16: Loose shell

Problem 16:

Loose Shell Syndrome (or LSS) is a slow killer of shrimp, hurting farmers’ profits.

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Shrimp farming common problem 17: Sudden mortality but no sign of disease

Problem 17:

Sometimes a crop suddenly dies – without ever showing any sign of disease.

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Shrimp farming common problem 18: Mortality or disease at 25-35 DOC - no mass mortality

Problem 18:

It is common for a crop in a poorly managed pond to experience illness during the first month.

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Shrimp farming common problem 19: Cannot molt, or shell has not hardened

Problem 19:

A failed molting means death for the shrimp.

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Shrimp farming common problem 20: Blue-green algae bloom after 50 DOC

Problem 20:

An algae over-bloom means plankton can easily crash and drop oxygen levels.

Watch the video on what to do