BRS Tonga Shelf (Flat Plates) Dry Live Rock

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BRS Tonga Shelf (Flat Plates) Dry Live Rock

100% Recommend this to a friend (13 of 13)

SKU: 000713

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Quick Overview

Tonga Shelf Plate Rock has come in many different sizes and shapes with no base.

Sold by the Pound - no minimum order

Unable to ship to Canada

Tonga Shelf Plate Rock, perfect for overhangs, caves and holding lots of corals in large tanks. Free of nuisance algae and pests. Shelf with base pieces is more three dimensional than the flatter plate pieces. These pieces do not have any base or stem and can easily accept a small piece of rock to form a base or be added to an existing structure.

Rock Selection: Due to the wide variety of unique sizes and shape of this rock it is impossible to fulfill orders to exact dimensions but we are happy to make every attempt to get as close as possible if you leave notes on what you are looking for in the order comments section of the checkout.

Shipping Notes: Tonga Shelf can be fragile. BRS makes every effort to securely pack the Tonga Shelf.  However, the UPS automation is not always gentle on heavy products like this and they do not consider this product insurable. Because of this, there is some inherent risk with shipping rock like this across the country and it is impossible to replace or refund broken pieces. If this happens most pieces can be repaired with epoxy.

BRS recommends curing all rock before being used in an established system


Ask a question

Product Questions

Around how many pounds is a flat plate of 10 inches across by 7 inches wide?
Question by: Arlo on Dec 27, 2016 7:41:00 PM
Hey there,
While it's hard to know exactly as there is some variation in plate thickness and density, I would expect a piece of that size to be around 4-5lbs.

Have a great day!
Answer by: Zack (Admin) on Dec 30, 2016 4:04:00 PM
Great question! That size of piece is going to be around 8-10 lbs. :-)
Answer by: Randy (Admin) on Jan 2, 2017 7:23:00 AM
Is it possible to get the shelf rock in 18 inch by 18 inch pieces?
Question by: Robert Benedict on Jan 26, 2017 6:58:00 PM
Great question! Unfortunately, we are not able to provide custom rock orders. Although we can get as close to an 18" wide shelf piece as possible, if you order that 18" piece we cannot guarantee a piece that will be 18" long as well. :-)

Answer by: Randy (Admin) on Jan 29, 2017 7:45:00 PM

Full Details

Like all of our dry rock Tonga Shelf is free of nuisance algae and pests which can cause complete tank shut downs and is guaranteed to be free of aiptasia, bubble algae, parasitic isopods, mantis shrimp, acro eating flat worms, little red bugs, fire worms, predatory nudibranchs, pyramidellid snails and other common pests. 


Using Dry Rock has the following advantages:

  • Low initial cost on premium types of rock.
  • Pound for pound a way better value - no water weight.
  • Can be shipped standard UPS ground which saves a fortune on shipping.
  • Absolutely pest free. This is the most important reason. This allows you to completely avoid all of the most common aquarium pests that plague most aquarists.


How much rock do I need?

Knowing exactly how much Dry Live Rock you will need can be one of the hardest questions to answer since every tank and rock will be slightly different. A general guideline for Tonga Shelf Dry Live Rock, we suggest 1 pound of rock per gallon of display tank volume and may vary depending on your overall goal for the aquascape. We always recommend purchasing a little extra dry rock to ensure that you will have enough to complete the aquascape you are looking for, any extra rock can always be broken up and placed in your refugium, overflows, and sump for added filtration.


Picking: When ordering rock any notes for size, shape, or concerns can be left in the "Order Comments" field during check-out step #3. Our picking department will do the best to follow the notes on the order.


Shipping: Tonga Shelf can be fragile. BRS makes every effort to securely pack the Tonga Shelf. However, we have no control how UPS handles it and it may break during shipping. Unfortunately, this is not covered by insurance so we are unable to replace broken pieces.


Note: Dry live rock is not available for shipment to Canada due to high tariffs. Please consider Reef Saver rock as this is not subject to these fees and our favorite of the dry rocks available.



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  • My wife's favorite pieces of shelf rock By Wade on 4/20/2017

    I ordered 20 lbs and received 2 very large pieces that almost looked identical to the ones pictured! Couldn't be happier with this product for the price!
  • Great looking pieces By Bardo on 4/7/2017

    Ordered just 5lbs and got 3 pieces. Just what I need to add a couple of shelves on to my Pukani. Looks great.
  • Phenominal flat rock! By Blackhawkfan on 3/13/2017

    Great rock for making shelves!
  • exacly what i asked for By Joe on 3/11/2017

    thanx brs i asked for smoll round pieces and got that in spades
  • Good By Kevo on 2/14/2017

    I like it
  • Even better than what I expected. By Doug on 2/11/2017

    Wanted a large slab and got a huge piece that was bigger than I expected and weighed more than what I payed for. Thanks BRS.
  • BRS Tonga Shelf (Flat Plates) Dry Live Rock By Mike. on 2/2/2017

    I have a 125 gallon reef tank and the dry rocks fit my specific needs and got exactly what I requested.
  • Great Aqua Scaping pieces. By Nick on 11/18/2016

    Bought a few of these to add shelves to my island pillars I'm sculpting. BRS filled my order with my description and shapes I wanted perfectly, they read my mind! Used the standard free shipping,and they arrived fast in 3 days. BRS you guys Rock!
  • Good By Steve on 11/9/2016

    They are great it made my tank look nice
  • Great dry rock! Am mixing with live Indo rock By SPSJunky on 10/13/2016

    This is great dry rock. I seeded it in my curing vat with 65 lbs of Indonesian live rock. Cured nicely along with Pukani and branch I also bought from BRS. Just waiting for completion of my stand build to get set up. Would definitely recommend this rock.
  • Great Flat Rock By Randy on 9/24/2016

    Beautiful flat rock for creating shelves. I received exactly what I asked for.
  • Its great but i would say pay the extra for the base. By Landon on 9/5/2016

    I bought a 3Lb plate and wasn't sure what to expect. I was sent a 7 pound plate. They are hard to configure to look right but once you get it there its totally worth it.