An 18-ply cage net(  often structured with an 18- ply high-tenacity twine and typically a 1 1/2 -inch mesh size) is a heavy-duty mesh enclosure widely used in fresh water and marine fish farming- such as tilapia and catfish aquaculture in lake Victoria and regional reservoirs.

Key Specifications

Twine Construction: 18ply( twisted or braided high-density polyethylene) offering balanced tensile strength and manageability.

Mesh Size: Commonly configured around 1 1/2 inches ( or specialized sizing like 50mm for bird/predator covers), allowing steady water movement while preventing fish escape.

Common Roll/Dimensions-Frequently supplied in large formats( such as 200md depth x 50yards length)

Importance in Aquaculture 

Reliable fish Containment. the thickness prevents the mesh from stretching, sagging or tearing under physical movement and weight of growing fish stocks, stopping accidental escapes.

optimal water circulation: this is vital for maintaining high dissolved oxygen levels and flushing out metabolic waste. A well calibrated mesh permits a continuous flow of fresh water in and out of the enclosure.

Physical protection from predators: it acts as a physical barriers against aquatic aerial predators from the stock.

Durability and weather Resistance. its is UV treated from direct sunlight.

cost effective: it extends operational lifespan compared to lighter ply like 6ply