CaribSea South Sea Base Rock for Aquarium - 40 lb - Natural Rock for Aquascaping Ideal for Saltwater

The media could not be loaded. This product is well worth the price. It is man made rock and a great beginning substitute for live rock. Make sure to rinse well and it can go straight into your aquarium. It can be made into live rock over time and is a perfect addition to a basic saltwater aquarium. It comes with many medium size 5 by 8 inch rocks, It was enough to create a nice reef wall in a 75 gallon tank. I would definitely buy it again! Read more

Just purchased two boxes of this rock for my new 125 gallon saltwater tank set up and I am really loving the look of it. I have always purchased live rock for the beneficial aspects of it, but recently my live rock purchases have come with unwelcome hitchhikers which is irritating after a while. Live rock can also be a task to position in your tank without toppling over. This rock goes together like puzzle pieces and I feel as though I will not have to worry as much about my hippo tang being crushed by toppling rocks since she loves to nestle herself in between crevices (I do not like to glue live rock together because I move it around too much due to corals). For the most part I received some pretty large pieces (by large I would say football size) but that was no problem for me as I have a larger tank. You can also use a hand saw to cut down the rock if you so choose. I did start to clean off the rock before placing it into my tank, but all that is on the rock is sand so that will obviously settle after a while. If you are adding this to an already established tank I think I would take the time to clean that extra sand off so your tank is not cloudy for hours. Two of the rocks came broken but honestly it did not hurt anything; I placed the larger part on the sand bed and used the smaller part to stack. I even had small broken pieces at the bottom of the box that I was happy about because I can glue corals to them in the future. Read more

These are Awesome! Used in my 20 gallon High with Freshwater Angelfish (for size reference). I followed advice from another review and rinsed really well then let it sit 24 hrs with seachem prime (or any conditioner for tap water) in separate bucket before adding to tank. Color is great, came with many pieces to build my little structure! Alot for 10 lbs , Great deal and quality! Read more

These rocks are amazing for the price. Bought two boxes for my tanks (10G and a couple of 5 G) . I still had a few left. good size rocks, generous quantity. will definitely buy in the future when i upgrade my tank!! Make sure to wash them thoroughly before dropping them in the tank. They are pretty dusty. Read more

OK. I will weigh in here. GREAT rock for the price. Texas Holey Rock jumped to 125 / 40lbs, bought this at 75. Bought it for my Cichlid tank and it looks great. THR has a smoother surface texture and has larger holes the fish can swim through. I actually like the more interesting surface texture of the CSSR. And by by stacking it you can create your own holes. It was also uniformly whiter than my THR. I mixed 1 40lb box with 190lbs of THR in a 125g tank. They look fine together. Update, pulled 1 star. Recently purchased 50 lbs of Florida Reef Rock for $95 from ReefCleaners.org. This rock is the best. Much more porous and is easy to build with than the CSSR. Bought 100 lbs for my reef tank and it looks great. If I were to do my Cichlid tank over, I would go with the FRR. Amazing service. Read more

Nice sized pieces that can be glued together to make much larger structures, lots of holes ect , wash before using it is gritty from handling during shipping, I would buy from them again. Read more

Received today and bought 20 poinds and although it was lighter than i thought it would be, i got an assortment of sizes and shapes. The rock is beautiful and arrived in great condition. I bought a masonry bit to drill them to insert fiberglass rods in them to hold them together in my reef tank, but they are so porous that i am not sure i am going to need to drill them. Looks like there are several holes thay i can slide.my rod into (lol). Wont know until i get a chance to work on the aquascape, but overall very satisfied but wish i would have only gotten 10 pounds, because it seems like more than i need. The right line of rocks below is one 10 pound bag and the left is the second 10 pound bag. A few little pieces broke off, and some dust. I threw the dust away and kept the little pieces that broke off. Read more

I have ordered the rock twice for my reef tanks. The pieces are perfect, hardly any broken pieces. The quality is just as good as the specialized reef stores in my area but $2 cheaper a pound! I ordered another shipment. The rocks were great except it was almost 3# short. I only got 7 of the 10# I was supposed to. The pieces I got were great, but I need the rest of my order 🐠 Read more