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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.
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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.
My wife's favorite pieces of shelf rock By Wade on 4/20/2017Wade would recommend this product to a friendI 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 4/7/2017Bardo would recommend this product to a friendOrdered 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 3/13/2017Blackhawkfan would recommend this product to a friendGreat rock for making shelves!
exacly what i asked for By Joe on 3/11/2017Joe would recommend this product to a friendthanx brs i asked for smoll round pieces and got that in spades
Good By Kevo on 2/14/2017Kevo would recommend this product to a friendI like it
Even better than what I expected. By Doug on 2/11/2017Doug would recommend this product to a friendWanted 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 2/2/2017Mike. would recommend this product to a friendI 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 11/18/2016Nick would recommend this product to a friendBought 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 11/9/2016Steve would recommend this product to a friendThey are great it made my tank look nice
Great dry rock! Am mixing with live Indo rock By SPSJunky on 10/13/2016SPSJunky would recommend this product to a friendThis 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 9/24/2016Randy would recommend this product to a friendBeautiful 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 9/5/2016Landon would recommend this product to a friendI 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.