Hatching substrates

Spawning Substrates in Aquaculture

Spawning substrates are materials or devices used in aquaculture to promote fish reproduction by providing a suitable place for egg deposition. They are selected based on the reproductive behavior of the species (free spawning, adhesive eggs, cavity spawning, etc.).
Common types of substrates include:

• Synthetic fibers (e.g., nylon fringes): Mimic aquatic plants; ideal for fish that spawn in suspension like carp.

• Tiles, bricks, or PVC pipes: Used for species that seek cavities, such as catfish or bottom-dwelling fish.

• Gravel or natural substrates: Suitable for species that lay eggs on the bottom, such as trout.

• Coconut mats or floating nets: Used in ponds or floating cages, easy to handle.