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. 

Download the poster and start using it in your pond.

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.

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.

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

Problem 2:

Benthic or filamentous algae during water preparation.

Shrimp fariming common problem 03: Turbid water post-stocking

Problem 3:

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

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.

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.

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.

Shrimp farming common problem 07: Color of water turns orange

Problem 7:

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

Shrimp farming common problem 08: Black sludge

Problem 8:

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

Shrimp farming common problem 09: Bad odor

Problem 9:

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

Shrimp farming common problem 10: High level of ammonia

Problem 10:

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

Shrimp farming common problem 11: High nitrite

Problem 11:

Nitrite becomes more toxic in a pond with low salinity.

Shrimp farming common problem 12: Sudden decrease in feeding

Problem 12:

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

Shrimp farming common problem 13: Pink gill or shell

Problem 13:

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

Shrimp farming common problem 14: White muscle without mass mortality

Problem 14:

White muscle is abnormal. It indicates stress or disease.

Shrimp farming common problem 15: White feces

Problem 15:

White fecal strings indicate a bacterial or parasite infection.

Shrimp farming common problem 16: Loose shell

Problem 16:

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

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.

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.

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

Problem 19:

A failed molting means death for the shrimp.

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.