Black Long-Spined Sea Urchin

What is the Swell Black Long-Spined Sea Urchin?

The Black Long-Spined Sea Urchin is an unusual animal that is an exceptional algae cleaner in tanks with aggressive fish. Whereas other invertebrates would be eaten, their long spines allow them to defend themselves against any fish that might want a nibble. You need to make sure that the tank you place them in has plenty of space for them to roam and make sure that there are lots of hiding places for them as well, such as live rocks. These Urchins can be very difficult to keep as they require a great deal of care, you need to make sure that they are acclimatised very carefully as a rapid change in the water quality can be very dangerous for your urchin and you need to make sure that you have excellent water at all times. While the spines on the Urchin are not venomous they are very sharp and can be painful if you touch them. It is normal for them to lose the occasional spine but if they start to lose a lot then it could mean your water quality isn't good and so you will need to improve it

How are these fish delivered to you?

The delivery time for your fish will be two working days if ordered before 2pm Monday - Thursday, and if you ordered after 2pm on a Thursday until Sunday then they should arrive with you by Tuesday. They will arrive in a polystyrene box and be bagged with oxygen which will allow them to stay packaged for up to 48 hours, if they are ordered during winter they will also come with heat pads for warmth. There is a one off £30 delivery charge regardless of how many fish you buy per order.

How do you acclimatise this fish to your aquarium

You need to carefully acclimate your fish when they arrive. To find out all this information and much more be sure to check out our Complete Guide to Buying Live Aquarium Fish Online

Please note: The livestock that is sold on our online site is not held in store at our Swell shop, or available for collection from the shop. Species sold at our Swell store will differ from ones available to order to your door.