Nested filters and omnivorous species typically don’t need special attention, but the species they prey on do require specific care due to their small size and weak competitive ability for food. Additionally, some large fish have poor digestion or difficulty feeding, especially when the feed has a rough texture. This makes it particularly challenging for smaller species like juvenile grass carp. To address this, farmers often use mesh or bamboo baskets to create small feeding stations. The number of these feeding stations depends on the size of the pond.
The mesh size and fence gaps should be determined based on the body width of the larger fish to prevent them from entering while allowing the target species to access the food. For example, if the fingerlings grow quickly, it's important to replace large-mesh nets or wider fences in a timely manner. Feeding strategies also play a key role. In addition to commercial pellets, it’s beneficial to provide nutrient-rich and easily digestible feeds that match the dietary needs of the fish.
For instance, during the early summer flowering season, young grass carp can be fed with water clover (Pteris viridis) and duckweed. As they grow, purple duckweed can be introduced, and later, finely chopped tender grass becomes an ideal option. This approach ensures a balanced diet and supports healthy development. Regular monitoring of feeding behavior and adjusting the feeding method accordingly is essential for optimal growth and survival rates.
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