I surmised most small fish last less than a year max.
All fish live much longer than that. I am not sure how long clown gobies live but I am sure they live at least 5 years. Mine are maybe 3, I don't remember. My watchmans lived about 12 years as most fish of that size live. Larger fish like tangs can live about 20 years as do clownfish. My fireclowns are almost 20.
These guys lived and spawned for 12 years, they are very young here
These little gobies live much shorter than most fish, but way longer than a few months.
Here are those watchmans about 10 years old
I have a mated pair of clown gobies, I love those fish because they are real bright yellow.
Even mandarins live over 10 years, here are mine spawning.
Mandarins are dragonettes, not gobies.
Here is a short video, you can see the clown gobies here. If you feed them correctly, gobies, and all fish will live a long time. Dry food is not the correct food.
