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Coral Gravel Medium Grade 3mm - 25kg Aquarium Substrate

Quick Overview

Coral gravel suitable for marine or freshwater aquariums....

Availability:Out of stock

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Coral gravel suitable for marine or freshwater aquariums.

The highly porous structure of this gravel provides the ideal level of biological filtration, as friendly bacteria can form easily. As it has a large surface area this makes it a great way to bolster the filtration for a healthy and clean tank.

Grain size = 3mm

Additional Information

MPN 140120
Barcode 5036941401205
Brand Unipac

Customer Reviews

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Versatile substrate Review by maya
I use this for attaching corals frags and maxi mini anemones so they can be detached easily when I attend frag swapping events. I have even used in my calcium reactor and as a replacement for bioballs in a wet and dry filter! I would recommend buying a bag even you dont plan on using it as your main substrate! (Posted on 28/03/2012)
Great for calcium reactors Review by shane
I use this as calcium reactor media, and in my trickle filter very cost effective and very porous!
Multi function, great product. (Posted on 14/03/2012)

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Postage Information

Get an Exact quote for delivery...

Add the items you would like to purchase to the shopping cart and then head to the checkout cart. Here you can pop your postcode into the form and it will automatically calculate for you delivery options and cost.


Orders over £30 are Delivered FREE!

Providing none of the items in your order require pallet delivery or are excluded from delivery promotions, we will give you free standard delivery. You can still upgrade this service if you wish, and will only pay the difference.


Pallet Deliveries are different.

For items that have to be sent by insured pallet or other special delivery, these are excluded from the standard delivery offer and instead follow a different system. Pallet deliveries are split into 2 tiers: tier 1 and tier 2. Pallet deliveries take 2-4 working days and cannot be tracked.


For pallet deliveries we will contact you to confirm the delivery address and delivery day before releasing the order.


Please note that the pallet delivery service is a drop at kerb only service, the drivers are not insured to handle goods into homes and you are required to dispose of the pallet.


Pallet Tier 1

This tier is for solo tanks and cabinets, or other solo high weight products that we can't send by a normal courier. We subsidies the majority of the true delivery cost for these items to offer the best value we can. The shipping cost for these is calculated at checkout.


Pallet Tier 2

New for 2020! We are proud to announce we now offer FREE mainland UK pallet deliveries for Pallet Tier 2. Pallet Tier 2 is for the larger full tank and cabinet sets, such as the beautiful Juwel Rio, Lido, Trigon and Vision ranges.

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