Seahorses are tiny underwater critters players can catch in Dave the Diver, but despite their tiny size, they are key to a few side quests. As players explore the depths of the mysterious Blue Hole in search of new sushi ingredients, they’ll encounter many different kinds of sea life. To capture many of these animals, players will need special equipment.

https://screenrant.com/how-to-catch-seahorse-dave-diver/