Longspine Urchin (Diadema setosum)
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Longspine Urchin
Diadema setosum
208 Litres (55 US G.)
20.3-25.4cm (8-10 ")
8.1 - 8.4
22.2-25.6°C (72 -78 °F)
8-12 °d
1:1 M:F
3-5 years
Contents
Alternative names
- Longspine Urchin, Black Longspine Urchin
Sexing
- Unknown
Tank compatibility
- Due to this Urchin's excellent defences, it is an excellent algae-controller in a tank with semi-aggressive or aggressive fish.
Diet
- This is a herbivorous Urchin and will graze on algae and phytoplankton. It can be supplemented with dry seaweed.
Feeding regime
- How often to feed, etc.
Environment Specifics
- It is sensitive to high levels of copper-based medications and it will not tolerate high nitrate levels. It requires ample hiding places which must be secure as this Urchin can dislodge loose live rock.
Behaviour
- A primarily nocturnal creature with excellent defences against predators. When approached by a fish, these urchins will sense their presence, and will defend itself by directing its spines towards its offender.
Identification
- How to id the animal.