Whisper SoftNet Nylon, Brine Shrimp (3")The Tetra Softnet moves easily through water and between plants to gently capture fish in an extra-soft nylon cushion. Fish love them, too this is one net that won't pull at fish scales! The Brine Shrimp Net offers a finer weave that is suitable for use with newly hatched brine shrimp and baby fish.