Variegated Urchin (Lytechinus variegatus) saltwater invertebrate

Variegated Urchins are active Western Atlantic grazers that consume algae across rock, glass, and substrate. They can become larger and stronger than a small Tuxedo Urchin, so leave adequate grazing area and secure frags and light rock pieces. Keep them in a mature aquarium with stable salinity, normal reef mineral balance, and no copper exposure.

Supplement with dried seaweed and algae-based foods when visible grazing becomes limited. Avoid keeping more urchins than the aquarium can feed after nuisance algae declines.

Film Algae Macroalgae Diatoms Dried Seaweed
Peaceful but physically strong. Like other collector-type urchins, it may pick up shells, algae, or loose décor while moving through the aquarium.

FAQ

Frequently Asked Questions

About the Variegated Sea Urchin

  • Is a Variegated Urchin reef safe?
    It is generally coral safe, but it can move or carry loose objects.
  • Will it knock over coral frags?
    Yes. Secure plugs and unstable rock before introduction.
  • What does it eat?
    It grazes film algae, diatoms, and other plant material; supplement with seaweed when needed.
  • Can I keep more than one?
    Only if the aquarium is large and productive enough to provide sustainable grazing for each animal.