Cleon
Legend
Agreed. Even if the real-world version isn't quite so hardy, the "gigantification" evolution could account for it.
I'll make the suggested revisions to the damselfish. Thanks, Cleon.
Don't mention it old bean, only too happy to oblige.

Agreed. Even if the real-world version isn't quite so hardy, the "gigantification" evolution could account for it.
I'll make the suggested revisions to the damselfish. Thanks, Cleon.

If egg-eating fish or small marine creatures move too close to a clownfish’s nest, it can scare off the intruders by making loud clicking sounds.
I think an immunity to paralysis and poison should cover all the bases. After all, we need to give these guys something.
Ok, then. Giant clownfish it is. Small animal, and we wanted Con 14 or 15. Probably lowish Str is ok, with averagish Dex. Int 1. Suggesting:
Str 9, Dex 10, Con 14, Int 1, Wis 11, Cha 8?
Want to make a fear effect out of this? It could just be flavor or maybe a bonus to Intimidate checks.
The improved Dex and Cha seem fine to me.
Updated.
Challenge Rating: 1/2?
Advancement: x
A giant clownfish averages 3 feet in length and weighs about x pounds.