Drs. Foster & Smith Educational Staff

Compatibility Charts for Marine & Freshwater Aquatic Life
Tank mate compatibility is crucial to a successful and healthy home aquarium. Incompatible species will increase stress in the tank which could result in disease and considerable loss. Use our compatibility charts as a guideline when selecting fish and please read our article "Introducing New Fish Into Your Aquarium" before making your fish selection.

Marine Compatibility Freshwater & Brackish Compatibility


Remember, no guarantees can be made about the compatibility or incompatibility of any particular species of fish. Also, particular species within a group of fish vary in temperament and may not correspond with the guidelines below.















Marine Compatibility:









Freshwater & Brackish Compatibility: