Caribsea life rock

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Good stuff. Haven’t had any issues, short or long term. Some pieces in the box can be more dense, others are great in terms of porosity and shape. Seed it with bacteria from a few established tanks from fellow reefers if you can. It’s supposedly already sprayed with some type of beneficial bacteria, but I’d take that with a grain of salt.
 
From the manufacturer:
It’s crap. Wouldn’t be the first time that somebody lied about their product. My goodness. Here try this:

Nitrosomonas is generally found in highest numbers in all habitat in which there is abundance of ammonia ( environment with plentiful protein decomposition or in wastewater treatment), thrive in a pH range of 6.0–9.0, and a temperature range of 20–30 °C (68–86 °F).
It is usually found in all types of waters, globally distributed in both eutrophic and oligotrophic freshwater and saltwater, emerging especially above all in shallow coastal sediments and under the upwelling zones, such as the Peruvian coast and the Arabian Sea
Google “nitrosomonas”. You’ll also need to learn about nitrobacter in order to understand the complete nitrification cycle. You might want to Google that too.
 
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It’s crap. Wouldn’t be the first time that somebody lied about their product. My goodness. Here try this:

Nitrosomonas is generally found in highest numbers in all habitat in which there is abundance of ammonia ( environment with plentiful protein decomposition or in wastewater treatment), thrive in a pH range of 6.0–9.0, and a temperature range of 20–30 °C (68–86 °F).
It is usually found in all types of waters, globally distributed in both eutrophic and oligotrophic freshwater and saltwater, emerging especially above all in shallow coastal sediments and under the upwelling zones, such as the Peruvian coast and the Arabian Sea
Google “nitrosomas”. You’ll also need to learn about nitrobacter in order to understand the complete nitrification cycle. You might want to Google that too.

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R2R was founded on the simple premise to develop a warm, friendly, suitable place to gather and discuss this hobby for people of all ages, backgrounds, and experience levels. The “Be Nice” policy is something we take very seriously.

We highly encourage healthy debate here and understand not everyone will agree on all issues. In fact, we value healthy and even lively discussion of hobby issues and questions...this actually leads to advancements in our hobby, so we ALL win through these debates. What we will not tolerate is the negativity, name calling, belittling attitude towards other members or the topics being discussed. We are not asking you to cease debating your positions. What we are asking is that you do so in a healthy, respectful manner.
 
R2R was founded on the simple premise to develop a warm, friendly, suitable place to gather and discuss this hobby for people of all ages, backgrounds, and experience levels. The “Be Nice” policy is something we take very seriously.

We highly encourage healthy debate here and understand not everyone will agree on all issues. In fact, we value healthy and even lively discussion of hobby issues and questions...this actually leads to advancements in our hobby, so we ALL win through these debates. What we will not tolerate is the negativity, name calling, belittling attitude towards other members or the topics being discussed. We are not asking you to cease debating your positions. What we are asking is that you do so in a healthy, respectful manner.
I have no problem with that. It wasn’t me who started it. And it wasn’t me who started the name-calling. I simply posted something that I thought was relevant and I was threatened by this individual who doesn’t know me and has never conversed with me before. And then he resorting to name-calling by calling me a twerp. I felt obligated to respond. Thank you for the kind warning.
 
I would not recommend the product. What is under the rather fragile "coating" is dense white and not very porous. My sandbed is full of little dark flakes of the coating. I may have gotten a defective batch but I would not buy it again.
 
I used it in my new 32.5 gallon setup, and personally I love it. I did not want live rock, and I was impressed with how natural it looks when compared to my boss's tank which is full of actual live rock. I do believe it is seeded with some bacteria, it smells like it, lol. Not a chemical smell. Now whether it really matters, not sure. I used Fritz TurboStart, PNS Substrate Sauce, and AlgaeBarn Nitrocycle and did a fishless cycle with it. I used E-Marco 400 purple mortar on the large shelf piece I got. I have a couple big pieces of rock leftover I can add later or use in another tank. It was expensive, but I like it and would recommend it. It IS dense and heavy, some pieces more than others. But, I'm not relying on the porosity of it for bio-filtration - my InTank baskets are full of Marine Pure biospheres. Here's a pic.
 

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If it comes dry, it’s not seeded with bacteria. Nitrosomas and nitrobacter cannot be dry and still be alive.
To the best of my knowledge, this is partly true; nitrifying bacteria are indeed non spore-forming and cannot survive desiccation (and thus couldn't possibly survive on any dry substrate). The product description for Life Rock states that the material is "infused with spored bacteria." Perhaps they use Bacillus? While microbes such as these have a demonstrated positive effect in aquaculture applications as probiotics, they don't fulfill the ecological role of ammonia/nitrite oxidizing chemolithotrophy as do the nitrifiers.

DrTim?​

 
To the best of my knowledge, this is partly true; nitrifying bacteria are indeed non spore-forming and cannot survive desiccation (and thus possibly survive on any dry substrate). The product description for Life Rock states that the material is "infused with To the best of my knowledge, this is partly true; nitrifying bacteria are indeed non spore-forming and cannot survive desiccation (and thus couldn't possibly survive on any dry substrate). The product description for Life Rock states that the material is "infused with spored bacteria." Perhaps they use Bacillus? While microbes such as these have a demonstrated positive effect in aquaculture applications as probiotics, they don't fulfill the ecological role of ammonia/nitrite oxidizing chemolithotrophy as do the nitrifiers.
You know what they say. There’s a sucker born every minute.
 
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To the best of my knowledge, this is partly true; nitrifying bacteria are indeed non spore-forming and cannot survive desiccation (and thus couldn't possibly survive on any dry substrate). The product description for Life Rock states that the material is "infused with spored bacteria." Perhaps they use Bacillus? While microbes such as these have a demonstrated positive effect in aquaculture applications as probiotics, they don't fulfill the ecological role of ammonia/nitrite oxidizing chemolithotrophy as do the nitrifiers.

DrTim?​

If it’s not nitrifying bacteria, it’s only usefulness in that application would be to provide dead organic matter. You don’t need to spend all that money to put some dead organic matter into your tank.
 
If it’s not nitrifying bacteria, it’s only usefulness in that application would be to provide dead organic matter. You don’t need to spend all that money to put some dead organic matter into your tank.
That is partly correct. If it's Bacillus (or frankly just about any bacterium), it will play a role in nitrogen cycling through assimilitory processes. But there seems to be a trade-off, as studies point to a possibility that some commonly utilized strains of Bacillus (e.g., B. subtilis) can in some manner restrain autotrophic nitrification. Unfortunately, all we can do is speculate here, since we don't actually know the identity of the microbe included in the aforementioned product; would be much, much more helpful if manufacturers would list all live contents to at least the level of genus. To me, any hesitation to do so is sketchy AF.
 
just wanted to get peoples thoughts and experience with caribsea life rock, is it any good and does it cause any issues?
So I’ve never used it, but I inquired about it when setting up my 30 gallon. Apparently the purple life rock is painted and it will either scratch off or degrade over time. Also I have heard it doesn’t really help your cycle. I ended up going with dry base rock from the LFS and it is great. It looks awesome when it was pearly white during the cycle and it looks awesome now still even with some diatoms on it. Can’t wait for the coralline to grow in. So I can’t say from expeirence but from what I’ve heard, it’s not the best stuff.
 
I've tried Carib Sea Life Rock, Cornerstone, Carib Sea Moani, and Pre-Cycled/Seeded rock from my LFS (which is a lot of old walt smith stuff from tank teardowns, although it's now devoid of everything but bacteria). Out of them, I prefer the last 2 with the cornerstone in a very close 2nd... Life Rock would be dead last on any list I make.
 
R2R was founded on the simple premise to develop a warm, friendly, suitable place to gather and discuss this hobby for people of all ages, backgrounds, and experience levels. The “Be Nice” policy is something we take very seriously.

We highly encourage healthy debate here and understand not everyone will agree on all issues. In fact, we value healthy and even lively discussion of hobby issues and questions...this actually leads to advancements in our hobby, so we ALL win through these debates. What we will not tolerate is the negativity, name calling, belittling attitude towards other members or the topics being discussed. We are not asking you to cease debating your positions. What we are asking is that you do so in a healthy, respectful manner.
My apologies , shouldn't have engaged with the superior on the face of the earth in fact should have avoided them altogether....in saying that I'm out. Be well.
 
Personally, I have started several tanks with CaribSea LifeRock and I love it. As another commenter said, it doesn’t go through the uglies and starts growing coralline algae pretty quickly. I would not recommend adding an urchin (at least not for a while) because the urchin will eat the purple coating right off the rocks and they’ll look patchy. The shapes rocks make it super easy to build an awesome scape without too much skill and they lock together nicely. Using LifeRock and live sand will get your tank off to a nice start, IMHO.
 

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