Shipping & Live Arrival

$59.99 overnight livestock shipping. Contiguous 48 states and Washington, DC only. No Alaska, Hawaii, Puerto Rico, territories, PO boxes, APO/FPO/DPO or international shipping. Livestock is excluded from free standard shipping; separate supplier or dry-goods shipments may have separate checkout charges.

Ships directly from our livestock supplier Monday–Wednesday, subject to availability and safe weather. Overnight transit begins after dispatch. For a live arrival issue, contact us immediately with clear photos within 12 hours of carrier-confirmed delivery. See our Shipping & Live Arrival Policy for full terms.

A compact-spined algae grazer from Atlantic reef habitats.

Quick Care Guide

You receive: One urchin; size varies.
Diet: Algae, including some coralline growth; supplement marine algae if needed.
Aquarium: Established saltwater system with stable chemistry, suitable feeding surfaces and shelter.

Setup & Compatibility

Provide stable rockwork and secure frags. May scrape coralline algae and move loose objects. Avoid handling the spines with bare hands.

Water & Acclimation

Maintain approximately 75–78°F. Keep specific gravity near 1.024–1.026 and pH 8.1–8.4 with consistent water quality. Follow the supplied acclimation instructions and avoid sudden salinity changes, copper medication and rough handling.

Live Animal Notice

Photos show representative examples, not the exact animal shipped. Individual size, coloration and appearance vary naturally. Allow the animal time to settle after arrival.

Prepare for Arrival

Prepare with acclimation equipment, a reliable salinity tester and foods suited to this animal. Avoid copper-based medications in systems containing invertebrates.

Why Buy From Infinity and Beyond Aquatics?

Practical care guidance and help choosing livestock that fits your aquarium, with support before and after your order.