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Minimum Purchase: $79.99 Serving the Lower 48 States Only Delivery Day Thursday - Friday Only

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Free Shipping for all orders over $349.99

Minimum Purchase: $79.99
Serving the Lower 48 States Only
Delivery Day Tuesday - Friday Only

  • Policies/Guarantee
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Long Spine Black Urchin

$32.99

A striking marine invertebrate with long, sharp spines that provide protection from predators. It plays a vital role in reef ecosystems by grazing on algae, helping maintain tank cleanliness. Requires a well-established aquarium with plenty of rockwork and hiding spots. Handle with care due to venomous spines.

5 in stock

Category: Urchins
  • Acclimation
  • Description
  • Shipping Information
  • Arrive Alive Guarantee (AAG)
  • Livestock Quality & Care Standards
Acclimation
  • Turn off the lights: Switch off both your aquarium and room lights before opening the box.
  • Float the bags: Open the box, remove the individual bags from the liner, and float them in your aquarium for 15-20 minutes. This helps the water in the bags gradually adjust to your tank’s temperature.
  • Gradual water mixing: After floating, transfer the contents of the bags into a sterile bucket or container. Add small amounts of your aquarium water every 3-4 minutes, continuing until the water in the container has doubled.
  • Dispose and add more water: Once the water level in the container has doubled, dispose of half of it and continue adding your tank water until the water volume in the container has doubled again.
  • Acclimated and ready: Your marine life is now properly acclimated and ready to be added to the tank. Be sure to dispose of the packing and acclimation water—never pour it into your tank.
  • Observe: Leave the lights off for a while and monitor your new tank mates for any signs of aggression.
Description

Long Spine Black Urchin

Care Level: Easy
Reef Compatibility: Yes

Minimum Tank Size: 20 gal
Approximate Purchase Size: 3″ to 5″

Max Size: 10″

Food/Feeding: Herbivore

Notes: The Black Longspine Urchin, also known as Long-spined Sea Urchin, has a body which is predominately black with a red eyespot in the center. The spines on these urchins are long, thin and completely black. They are a very delicate looking urchin, which are actually very capable of protecting itself. These urchins are excellent algae controllers for an aquarium housing aggressive fish.

Provide an aquarium with ample hiding places and room to roam. Being a nocturnal creature, the Black Longspine Urchin will hide during the day and only come out at night to forage for food such as algae and seaweed. These urchins are an excellent algae controller for an aggressive aquarium where other invertebrates would be eaten. When approached by a fish, these urchins will sense their presence, and will defend itself by directing its spines towards its offender.

It is very sensitive to high levels of copper-based medications and will not tolerate high nitrate levels. If it begins to shed its spines, it is a sign of very poor water quality.

Be aware, it is venomous, with its sting being roughly equivalent to that of a bee sting.

The diet may be supplemented with dried seaweed.

Shipping Information

Shipping Information

  • Confirmed Delivery Date: Orders will only be shipped with a confirmed delivery date to ensure you are available to receive your package.
  • Livestock Orders: All livestock are shipped via UPS Overnight Service, typically arriving by 10:30 AM or noon to most locations.
  • Dry Goods: Dry goods are shipped via UPS Ground Service and may take 3-5 days in transit.
  • Tracking Information: You will receive your UPS tracking number the afternoon before your confirmed delivery date.
  • Box Fee: A box fee of $10.99 will be added to all orders.

Heat & Ice Packs: Included as needed for temperature regulation during shipping.

Shipping Rates - Exciting Offers for Florida!

  • 1/2 Price Shipping: Available for most Florida zip codes.
  • Flat Rate Shipping - Orders Over $79.99:
    • $39.99 flat rate for all locations (FL = $19.99)
  • Flat Rate Shipping - Orders Over $129.99:
    • $29.99 flat rate for all locations (FL = $14.99)
  • Flat Rate Shipping - Orders Over $239.99:
    • $19.99 flat rate for all locations (FL = $10.99)
Arrive Alive Guarantee (AAG)

If there are any issues with your livestock delivery, please email us within 2 hours of receiving your order with the following details:

  • Your name
  • Order number
  • Description of the item(s)
  • A clear photo of the item(s) in the bag

Keep the item(s) separate from others, remove as much water as possible, and begin acclimating them. The livestock may be in a dormant state due to shipping stress and trauma.

After acclimating, send a clear photo of the item(s) outside the bag. If you have multiple items, please include them in one photo.

Please note, shipping and box fees are nonrefundable.

Livestock Quality & Care Standards

Be Prepared

Ensure you choose the best tank mates for your system and are available for delivery upon arrival.

Stock & Quality Assurance

Our livestock is sourced directly from trusted local Florida collectors or reputable international suppliers. Each specimen is observed for a minimum of 2–5 days before shipping to guarantee health and quality.

Tank Separation & Quarantine

Invertebrates are housed separately from fish, and all fish undergo medication. A quarantine tank is always recommended for best practices.

Corals

Our corals are primarily sourced from an experienced aquaculture team, ensuring sustainability and exceptional quality.

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      • Dragonets, Blennies & Gobies
      • Eels
      • Lionfish/Leaf Fish/Frog Fish
      • Other Fish
      • Snappers and Groupers
      • Tangs & Surgeonfish
      • Triggerfish & Pufferfish
      • Wrasse
      • Seahorses and Pipefish

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    • Anemones
    • Coral
      • LPS Corals
      • Soft Corals and Polyps
      • SPS Corals
      • Zoanthids
      • Gorgonians
    • Inverts
      • Crabs
      • Cucumbers
      • Macro Algae
      • Other Mollusks
      • Shrimp & Lobster
      • Snails
      • Sponges
      • Starfish
      • Urchins
      • Everything else
      • Wysiwyg
    • Packages
    • Food and Supplies
    • Saltwater Fish
      • Angelfish
      • Basslets, Dottybacks and Grammas
      • Butterfly Fish
      • Cardinal Fish
      • Clownfish, Damsels & Chromis
      • Dragonets, Blennies & Gobies
      • Eels
      • Lionfish/Leaf Fish/Frog Fish
      • Other Fish
      • Snappers and Groupers
      • Tangs & Surgeonfish
      • Triggerfish & Pufferfish
      • Wrasse
      • Seahorses and Pipefish
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