Percula Clown L.

Reef-safe basslet that claims rockwork caves — a completely different niche from the open-water territory Percula clownfish patrol. Territorial skirmishes, when they occur, are with other cave-dwelling fish, not mid-water clownfish. Multiple sources including Aquarium Source and community reports on Reef2Reef confirm peaceful coexistence in mixed reef tanks.

Peaceful, bottom-hugging fish with no territorial overlap with clownfish. The aggression caveat that exists in the literature applies specifically to large, aggressive clownfish species (maroon, tomato) — Percula are explicitly called out as one of the low-aggression species that firefish tolerate well. Stays near substrate and won't compete for space.

One of the most peaceful damselfish toward other species, with cross-species aggression toward clownfish essentially undocumented. Their well-known aggression problem is strictly intraspecific — dominant chromis harass subordinates within their own school — and does not translate into any threat to Percula clownfish sharing the tank. Confirmed compatible across Aquarium Source, Reef2Reef, and Reef Central community discussions.

Slow-moving, passive fish that ignores clownfish entirely and focuses on hovering near rockwork. Intraspecific male-on-male aggression is the only documented concern and is irrelevant to a clownfish pairing. Reef-safe, same saltwater parameters, confirmed compatible by Saltwateraquariumblog and other published care guides.

Fully reef-safe with no aggression or predation risk in either direction — Percula clownfish do not eat shrimp, and the cleaner shrimp poses no threat to fish of any size. The cleaning-station behavior is actually beneficial: shrimp actively service fish in the tank, including clownfish, picking off parasites. Confirmed by Saltwateraquariumblog and other published care guides.