
Matted filefish
Acreichthys tomentosus
FishSaltwater
- Care level
- Moderate
- Temperament
- Peaceful
- Reef safe
- With caution
- Recommended tank
- 150 L
- Maximum size
- 9 cm
- Temperature
- 24–27 °C
- pH
- 8–8.4
- Diet
- Omnivore
Care at a glance
The matted filefish is mottled green-brown with small skin flaps, which makes it nearly invisible among algae and rock. It is bought mainly to control aiptasia, and of all the so-called aiptasia eaters it is the most reliable at it.
But beware: it also eats coral polyps, so in a well-stocked reef tank you are taking a risk. Add it temporarily, or only to a tank without sensitive corals, and start feeding it once the aiptasia are gone, otherwise it will look for an alternative itself.
Best not combined with
Related species
Keep Matted filefish in the BlubHub app
Add this species to your inhabitants, with count and photos, and see the care info next to your own water values, target bands and reminders. Free, no account, everything on your own device.
Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.






