Aiptasia Eating Filefish

Aiptasia‑Eating Filefish (Acreichthys tomentosus): Small, mottled green‑brown filefish known for its ability to consume nuisance Aiptasia anemones Reaches about 3–4 inches in length Camouflaged appearance with subtle patterning and a slender, laterally compressed body Highly effective biological control option for tanks struggling with Aiptasia outbreaks Origin & Habitat Native to the Indo‑Pacific, including Indonesia, Philippines, and Malaysia Found in seagrass beds, shallow reefs, and rubble zones Naturally cryptic and relies on camouflage for protection Temperament & Reef Safety Generally peaceful toward tankmates Reef‑caution: while many individuals are coral‑safe, some may nip at soft corals, LPS, zoanthids, or clam mantles once Aiptasia is gone Best added to tanks where Aiptasia control is the primary goal Tank Requirements Minimum 30–40 gallons Provide rockwork, hiding spaces, and moderate flow Stable water parameters: 72–78°F, pH 8.1–8.4, salinity 1.023–1.025 Works well in both reef and FOWLR systems (with caution) Diet Carnivore Actively consumes Aiptasia, making it a strong biological control option Also eats mysis shrimp, brine shrimp, finely chopped seafood, and high‑quality pellets Some individuals may require training to accept prepared foods Compatibility Peaceful with most community fish Avoid aggressive tankmates that may outcompete or harass it Can be kept singly; pairs may be possible in larger tanks Why Hobbyists Love It One of the most reliable natural Aiptasia‑control species Unique appearance and interesting swimming behavior Hardy once established and adaptable to a variety of tank setups