# Fish Index

> One species, one photo, one clear guide

Species-by-species profiles of freshwater, tropical and marine fish — every entry comes with a photo. Check difficulty, tank size, diet and tankmates before you buy. Built for accurate matching when you search a fish by name.

## Articles


## Knowledge Base
- [Full knowledge corpus, 97 curated cards](https://fish-index.com/llms-full.txt)