Gill rakers don’t get their own emoji, but surrounding fish and science icons like 🐟🐡🔬 get the point across nicely. Use 🦈🐠🔬 when discussing marine biology projects or 🐟🎣🔍 in fishing group chats. The combo 🐡🦈🌊🔬 hints at underwater research, while 🐠🦈🔍🌊 works for aquarium enthusiasts sharing their latest finds. These subtle mixes fit scientific posts, educational threads, and hobbyist conversations alike.