I have one of these in my 200 gallon salt water fish tanks and would really like to know the best way to get rid of it
Spotted Flatworm
Acanthozoon
Also known as: Polyclad Flatworm, Spotted Black Flatworm, Yellow Spotted Polyclad Flatworm
- Polyclad Flatworm
- Spotted Black Flatworm
- Yellow Spotted Polyclad Flatworm
Overview
Found singly or in pairs, amongst coral and rubble areas, of coral and rocky reef.
Flatworms can move fast along the bottom by rapidly beating tiny hairs which act like millions of feet to propel them along in an undulating manner.
Many flatworms are confused with seaslugs and visa versa.
How to identify
Habitat & where to find it
- Range · Indo-Pacific
- Country only · 3
Found singly or in pairs, amongst coral and rubble areas, of coral and rocky reef.
Adult photos 3
Discussion 2
Deep dive
Taxonomy
- kingdomAnimalia
- phylumPlatyhelminthes
- orderPolycladida
- familyPseudocerotidae
- genusAcanthozoon Collingwood, 1876
SourcesWoRMS
More in the family
Flatworms (Pseudocerotidae)

Divided Flatworm
Pseudoceros dimidiatus
7 photos

Flower's Flatworm
Pseudobiceros flowersi
2 photos

Fuchsia Flatworm
Pseudoceros ferrugineus
5 photos

Glorious Flatworm
Pseudobiceros gloriosus
7 photos

Hyman's Flatworm
Pseudocerotidae hymanae
1 photo

Jebb's Flatworm
Pseudoceros jebborum
2 photos

Laing Island Flatworm
Pseudoceros laingensis
2 photos

Linda's Flatworm
Pseudoceros lindae
2 photos

Persian Carpet Flatworm
Pseudobiceros bedfordi
9 photos

Prudhoe's Flatworm
Pseudoceros prudhoei
1 photo

Racing Stripe Flatworm
Pseudoceros liparus
5 photos

Suzanne's Flatworm
Pseudoceros susanae
5 photos