Urchin
Tuxedo urchin
Mespilia globulus
- Group
- Urchin
- Care level
- Intermediate
- With corals
- Reef safe
What does the tuxedo urchin do in a reef tank?
Film algae, diatoms, nuisance algae; some coralline typical, check
With corals: Yes, with care
How many should you keep?
No ratio in sources
One US gallon is 3.785 litres and one UK gallon is 4.546 litres, so a "per gallon" rule depends on whose gallon it means.
What can go wrong?
Carries shells and unglued frags as camouflage; glue frags down; may need nori when algae runs short typical, check
Which tankmates are risky?
Fish
Fish that may eat or harass it.
None of the fish in this guide is known to eat or harass it.
Other invertebrates
Invertebrates it may harm, or that may harm it.
None known.
These checks follow the reasons fish and invertebrates clash: same species or genus, similar shape, mouth size, temperament, food, burrows, tank size and the order they are added. Individual animals differ; every source agrees on that.
Sources
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