top of page
2023 June-2_edited.jpg

Fish Guide Costa Rica

Most common fish species found in Costa Rica & Eastern Pacific

Fish Identification Guide

An overview of the most common found species of fish in Costa Rica and Eastern pacific

This is great for divers & students who want to practice their FISH ID skills

Help us collect important data on fish polulations in Costa Rica

Feeling confident with your Fish ID Skills. Take a fish Quiz !

Choose a Fish Category

How to use this fish guide

Diving and snorkeling give us the opportunity to explore one of the most beautiful and mysterious habitats on Earth. 

The Eastern Pacific Ocean is a vast expanse of marine wonder, teeming with an incredible diversity of marine life. One of the most fascinating aspects of this ecosystem is the array of fish families that inhabit its waters. Among the numerous fish families found in the Eastern Pacific, Costa Rica stands out as a particularly rich and diverse hotspot.


The vulcanic rocky coastline and offshore islands host a remarkable range of species that have adapted to various niches and habitats. This fish identification guide helps you to look into some of the most common fish families found in the Eastern Pacific.

For your convenience this fish guide is divided into 12 categories based on commen features of fish families such as size, shape, color, behavior and markings. Study each of the categories and learn to identify common species of fish and their families.


If you enjoy fish identification we highly recommend you join our Marine Conservation program and help us monitor the fish populations and contribute to science and conservation in Costa Rica !

01b Program Header.jpg

Experience a Unique Diving frontier reserved exclusively for the adventurous divers

Hands-on Conservation Experience & Certifications

Work alongside our Passionate dive professionals

Be part of a Positive Contribution to Ocean conservation 

1 - 4 week programs & Eco Divemaster 

bottom of page