Diadema setosum
Longspine Urchin — Photo: By Ivan Fourie - http://www.flickr.com/photos/shodan/214924653, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=31978065
Long Spine Urchin
Be careful the spines are thin and hard to getout of fingers
Min. Tank Size 208 Litres
Size 20.3-25.4cm
sg 1.020 - 1.025
pH 8.1 - 8.4
Temp. 22.2-25.6°C
Water Hardness 8-12 °d
Diet Herbivore grazes on algae and phytoplankton