Nature's Ocean Natural Coral Aquarium Base Rock, 40-lb box
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Upgrade your aquarium swagger with the Nature's Ocean Natural Coral Aquarium Base Rock. This natural, porous aragonite rock is filled with naturally-formed holes that not only look great in your set-up, but help maintain aquarium health by acting as a biological filter. Plus, the porous surface is the perfect environment for denitrifying marine bacteria to grow, which work to decrease your tank’s nitrate levels over time. The unique shape means every rock is one-of-a-kind, and also makes it easy to stack when growing live corals or adding to coral-based environments. Plus, the rock has been soaked in a deep water well to prevent leaching in your aquarium.
Key Benefits- 100% natural aragonite rock is great for decorating aquariums, conserving natural reefs, coral farming, culturing rocks and growing live coral.
- Rapidly adapts to live environments and will not affect the cycling of your tank water so it’s easy to set up.
- Acts as a naturally porous biological filter and is free of biofilm so it’s perfect for aquascaping.
- Naturally porous surface helps grow denitrifying marine bacteria that help decrease nitrate levels.
- Works for saltwater and freshwater aquariums and has been pre-soaked to prevent leeching so you don’t need to soak it before using.
(2) rocks ranging from 12-17 inches in length.
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Item Number140832
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Weight40.0 pounds
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Aquarium TypeFreshwater, Saltwater
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Fish TypeTropical Freshwater, Marine Fish
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MaterialStone
Rinse before using. May cause pH changes when used in a freshwater aquarium.
Customer Reviews
89% Recommend
89% of reviewersrecommend this product
You've Already Reviewed This Item
56 Reviews
Showing 1-10 of 56 Reviews
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not as much as expected (40 lbs)
By Haro on Nov 29, 2020
I ordered a 40 lb package and u got three large rocks all in one box. And when I saw large, I mean large. These were a tad smaller than basketballs. Nothing wrong with it. I just think rocks should be a little less expensive. This is a steal at a little less than 2 dollars a pound, totally worth jumping on this, and here’s a guide on how much to buy: (trust me, I want to be a stingy as you) 40 gallon: 40 lbs, 90 gallon: 90 lbs, and so on and so forth. Hope this helped you. TOTALLY BUY, ROCKS ARE SO EXPENSIVE BUT THESE ARE VERY CHEAP, WILL NOT REGRET.
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Great Life Rock
By Kent on Jan 26, 2021
Received the rock quickly. Got 3 larger pieces and one small. Very little rubble or breakage in package. Definitely rinse the rock before putting it in the tank.
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Better than expected!
By Tp66 on Dec 5, 2020
Setting up a 200G salt setup and just needed some base rock. Amazing looking stuff. Just what I was looking for. I only wish they had more. I must have bought the last 2 boxes.
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Its Base! rock
By Josh on Aug 6, 2020
Like everyone else I got 1 giant rock and 2 large rocks. Will make for a great base in my 60 gallon. Gonna get some actual live rock at That Fish Place (thankfully i work 2 minutes from it hehe) to stack on top. Hopefully they blend well over the next year.
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Large pieces of base rock
By Fishhead on May 28, 2020
Received 5 boxes containing 2 or 3 pieces each with minimal breakage. My tank has a 5'x2' floor so I wanted a large size. They are fairly uniform in appearance and look natural with small holes throughout, no large crater holes. I was able to stack them in a sturdy rock-scape and make lots of arches. Definitely rinse them. I got them all stacked in the tank and sprayed them down well with the hose and then pumped out the milky water. I vacuumed the remaining silt with a shop vac.
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Best deal on the internet
By Nate on Jun 3, 2020
This is really nice rock for a low price. It has lots of holes and even pieces of algae and dried organisms, so it's definitely real. Just spray it with a hose and your good to go. I got 3 pieces, 2 are optimal size, but one is nearly 30 pounds, so I will have to break or cut it in half, but that's not a big deal.
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One huge rock
By Unhappy on Oct 17, 2020
one huge rock, rather than multiple manageable size rocks
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Absolutely perfect
By sarahj0630 on Apr 15, 2020
This took longer than expected to arrive with covid-19 delays but it was worth the wait. I washed them before adding to my tank and I was too labor some, mainly wiping my fingers over the nooks and crannies to break up some of the little pieces. It didnt cloud my tank when I added them and it looks amazing. I wish I could buy a 20lb box!
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Exactly what i neeed!!
By Ceemoney on Apr 5, 2020
Rock came in 3 large pieces way more than 40 lps but bottoms was flat so i just placed right in tank 75 gal surround with liverock should be purple in no time 5 min rince and was good to go! Highly recommend!
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So happy with it we're buying more
By Sandy on Mar 22, 2020
Two huge rocks arrived intact and exceeded our expectations. They arrived quickly and after rinsing them off, there was no cloudiness in the tank and the combined weight is likely greater than 40 lbs. We just put in an order for another box. Looking forward to receiving it!
