Listed below are the names and locations of all the fish you need for this achievement.

1. Borean Man O' War Schools can be found on the coast of Borean Tundra, Dragonblight, Howling Fjord and Grizzly Hills.
2. Deep Sea Monsterbelly Schools can be found in Howling Fjord.
3. Dragonfin Angelfish Schools can be found in Lake Indu'le of Dragonblight.
4. Fangtooth Herring Schools can be found in lakes and rivers throughout Howling Fjord.
5. Glacial Salmon Schools can be found in lakes and rivers throughout Grizzly Hills.
6. Glassfin Minnow Schools can be found in Crystalsong Forest.
7. Imperial Manta Ray Schools can be found in Dragonblight, Borean Tundra, Howling Fjord, and Grizzly Hills.
8. Moonglow Cuttlefish Schools can be found in Borean Tundra, Dragonblight and Howling Fjord.
9. Musselback Sculpin Schools can be found in Lake Kum'uya of Borean Tundra.
10. Nettlefish Schools can be found in lakes and rivers throughout Sholazar Basin.