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 compatability charts as a guideline when selecting fish and please read our article "Introducing New Fish Into Your Aquarium" before making your fish selection.

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.

Y = Yes, Generally Compatible   C = Can co-exist with Caution   N = No, Not Compatible

Click on the links below to view our Compatibility Charts.

[ Marine Compatibility   Freshwater & Brackish Compatibility ]