LR and cycleing questions

Reef N Discus

New member
First off please forgive me if I write to long of a post but I got a few questions and explainations on why I am thinking what I am thinking. Also thank you now for taking your time to read my questions/thoughts and for any responses I may get as a result. I am new to SW but have had freshwater for years I have a 55 gallon discus tank as of now and I am in the midsts of setting up my first 75 gallon reef tank 29 gallon sump fuge.

Ok so heres my questions thoughts concerns, I see some use base rock as a means or substitue for LR becuase of price of the LR in comparison to the base rock or becuase there trying to limit the amount of un wanted critters as LR is a non discriminate host of all types of life this makes sense to me. If the LZR is the primary means of biological fitration than in my opinon why would you need the LR would nt the pourous dry rock in time grow all the anarobic/arebic bacteria needed to susstain the reef given you have enough of the correct type of rock that is? I am getting a shipment of Marco Rocks due to be deliverd today I order 75 lbs for my 75 gallon tank and the total shipment weigth is 81 lbs was thinkink of adding 5 - 10lbs of LR to the base rock but now I am having second thoughts. If one can "kick start" the nitrogeon cycle with nothing more than a raw pice of shrimp than why is the LR needed? The critters that are dead or dying or will die fro the amonia spike in the newly setup tank seem like nothing more than an expensive way of introducing the amonia needed to get the cycle going. This seem counter productive to me, in freshwater we grow our colonies well for me in my canister filter with ceramic rings, but as you al know there is bio balls and I have heard of people even using those plastic pot scrubers and so forth nothing live there? So if all we need is the anarobic/arebic conditions wich will be gained by the pourous dry rock and a cheap amonia source is added then why the need for the LR? Sure it comes with all kinds of cool critiers but as stated earlier you also get the ones you do not want around. Most of the life has already died or is dying and or will die in the cycleing of he new tank so its an expensive amonia source? The critters that do survive may also some of which may be unwanted pestes and hence antoher reason why some exp reefers I hve been reading about use 90% or more dry rock. COuld I now just use the dry rock and a shrimp maybe The live sand I plan on adding to my sump/fuge which will also help out with the seeding of any more crushed coral sand and maybe even the dry rock?

If I just went ahead with the 80lbs dry rock from Marco Rocks and the live sand fuge/ chateo sump would I not be able to create the conditons needed to sustain a mixed reef tank or is the LR the only way to do this? Just seem to me in additons to the other things I stated about the LR its expensive not to mention it hurts the natrual reefs as well and this seem like a more ecological and financial way of doing things, SO WHAT AM I MISSING? I know there has got to be something I am not getting other wise you exp reefers would be doing it this way. Also doesn't the chateo ned harvested to remove the nutirents it sucked up? I read a recent post from a reefer who is having problems with his chateo dyiong back a bit he noted when he started he had a fist size ball and it grew to the size of two basket ball sizes before he had issues but I thought you were suppose to harvest about half of what grew on a monthly basis in order to remove the bad stuff in other words it like a sponge and the key is after it suced up what its purpose is designd for dont you want to get rid of it after that?

One more question in terms of the nitrogeon cycle it seem to me that the SW guys have got it figured out on how to get rid of the last part of that cycle the nitrates with the anarobic bacteria wether deep within the LR or in a DSB which I plan on having in the sump only an ornamental amount of a couple of inches in the DT. Well in freshwaetr game the only way we know how to get rid of the nitrates the end result of the nitrogeon cycle is by way of water changes, additevs, sponges, catchen resions or whatever and Live plants. We try to keep away from any type of anorobic conditon at all costs it seem to me if the freshwater guys including my self could addpot what the SW guys have figured out then the nitrates could be taken care of by deep sand bed and a bunch of snails with anorobic bacteria I wonder why we dont do this in freshawter hmmm?

On of the exp guys on here did tell me that eventually even dry rock would become LR given time, so I know the process may take a little while longer with little to no LR but hey its been said this hobby is for the patient and in order to keep un wanted pests out from the sart I am willing to wait a little longer on my tanks cycling. Seem to me a noob like my self could have a bad exp rite off the bat if the expensive LR he purchased for his tank after taking out a second mortage on his house to do so lol he could be introducing something unsavory to the tank that came on in with that LR. Seems to be the potential benefit of the benfical inhabitants does not out way byt he isk if you know waht I mean and I would rather by snails and littel crabs and so forth rather than take a crap shoot at what I am getting on my LR and in trun putiing into my brand new system. Now I know it has been siad you can not purchase all those little criters thats on that live rock, but I think theres enough otu there more than enough out there that you can buy and perhaps make up for in live sand that your not really missing anything? I mean what are you really aming to get with that LR that your tank can not possibly live or survive without? and that can be made up for in the way of buyin some of the criters like crab, shrimp, and live sand instead? seem like a much safer and enviromentaly safer option not to mention you know for the most part exactly what is going into your new prize.

Not to mention the words respnsible reefing come to mind and thinking green and trying to limit the amount of negitive impact on the earths land and oceans that our hobbys produce LR harvested from the ocean where millions of reefers purchase hundreds of pounds from year after year kind of like deforestation with out re planting a little tree in its place where is the responsible reefing in that? I am not saying I would not buy some LR but instead of 100% LR more like 90 95% dry rock and the rest in LR but if i could make up for the LR with a DSB, fuge, or buying som critters I can control whats going into my tank I certainly would rather do that. I am not just motivated by trying to save money and i am not a radical or a protester pitta type of person and I am not saying theres anything wrong with those people at all their wonderful in their own wright But it does seem to me a bit contridictve and I am not seing the clear cut advantages of the LR yet and perhaps my views or opinions will change once I recive some enlightenment from you my fellow way way way more exp than me fellow hobyist. This is whay I come here to ask learn and ask more questions I am trying to understand how it all works and why we do something I hate just doing something because thats what eveyone else is doing and thats fine to in fact i am sure I will follow in the foots steps of an experinced reefer who has shown sucess becuae it helps my chances I just do not like doing something without understanding why first instead of just blindly following along with out knowing the who what were and whys behind it if that makes sense to anyone? ALso in freshwaetr (I just thought of this and want to get it out there i know it was mid stream thoguht but I do not wnat to forget) the reasonw hy anarobic condtions are not desirable is becuase they relase those bubbels indicating a anarobic condtionw hich brings with it something sulfade or sulfiate which is that rotten eggs mell you sometimes get in a freshwater tank? Well any way if this is coused by the anarobic bacetrai and bad for freshwater and freshwater fish I mean this stuff can spell certan death if not correct fast and I mean moving with a purpose lol then why is this not also true in SW tanks and the life it holds why doe sht anorobic becteria not creat posinous onditons in teh SW hobby like it does the freshwater hobby.

Well liek I said I am very sorry for such a long post but I am very courious baout this and would like some good sound answers before I proced with my bild/set up. I have started listening to the Rob Weatherly guy Has any one ever heard of him? He has hese pod casts out on the net with some video demos but mostly a collection of over some where around 150 pod cast episodes the first pod casst I ever in my entire life have ever heard and its listening intsed of reading you actually get to hear a voce and you can listen while you working if you have that type of job like I have where I can do this and it is very educational I think he was on for 4 years I ust started last week I am on episode 12 now and I was tunned into the fact of this show by a fellow RC member here who was sugestion to a fellow petco 14 day cycler guy to the shows for him and I decide to check it out for my self cool stuff I was wondering if any one ever heard of him or maybe heard his show before? His name I believe is Rob Wetherly and the web site he has a wed sit as well is called The Talking Reef, like i said he asnwered questions peop[le would wirte in and have topics and some video demos of things I do nto think he does it any more but the info is still way relevent in my opinon and it is good for neebs like me and for ones that want to hear a voice instead that made up one you use when you read a post at least I do lol hoep I am not alone on this or i amy be crazy. So you can go to Itunes store and search for this pod cast the talking reef and check it out. This is where some of my questions come form I figure even if I can not wirte into the show and ask hiom I can listen to the shows and bring my questions here to RC were the worlds most exp reefers hang out trying to share info amungs the selves while trying to help out noobs and self proclaimed aqutic experts that work at petco lol. Sorry could not resist it.

Thank you all again for your time to read and to answer what you could even if you just skimed I thank you for taking the time out to help me thanks again its even in my signature permantly and forever thanking all of you who take the time out to help this noobie. Thank you.
Look forward toi reading your respone on this and I hope it does not rub any one the wrong way I am just simply trying to learn and asking quesitons reading posts and gather information from where ever I can to do so. i am not setting up my tank until I have a firm grasp on whats going on or at least an exllaintation of what I am doing before I proced so I am trying to learn what I can now. Thank you Nate W
 
There are two different camps when it comes to LR vs. dry rock. Each camp has their reasoning and there is at least one thread on this board where this is discussed in great detail - it's probably 100 pages long by now.

If you search for that thread, you will notice that a lot of the LR advocates have been successful in this hobby for multiple decades, so they know their stuff. They also make a great argument for biodiversity in your system, a biodiversity that you would not be able to replicate by buying specimens.

Personally, I went all LR in my 75. I was very careful in my selection and went with fully cured, very porous rock from an LFS I trust - and they gave me a great price. I did have a couple aiptasia and a couple mojanos, but I was able to get rid of those very easily with a little aiptasia-X. I have bristle worms, peanut worms, copepods, amphipods, stomatella snails, asterina starfish (some will argue these are a pest, but I disagree), brittle stars, various sponges, purple coralline, red corralline, and a whole host of other things that I haven't identified yet. Because my rock was fully cured, I had a very short cycle (2 weeks).

The fact that I have all this life in my tank makes the start up process so much more enjoyable. I have three kids and they have each spent several hours at night with a flashlight checking out all the cool critters. I have a couple firefish in quarantine right now, and if I didn't have all this cool stuff already in my tank, I would be dying to rush the process and get the fish in the DT, which would be a bad thing.

On the DSB vs. SSB vs. BB (bare bottom) front, you will also see varying opinions. If you investigate DSB's, you will find that the same issues that cause people to try to avoid anareobic areas in FW can also crop up with a DSB. Keeping a DSB has its own set of rules and husbandry that seemed like too much for me, so I just went with a refugium with some chaeto and a shallow bed in my DT. I figure I am going to be doing weekly water changes anyway to replace trace elements, so I am going to be exporting nitrates when I do that. But there are others that can make a DSB work, so if you want to go that route, just do your research.

The bottom line is that there are many, many, many different ways to do this hobby and be successful. You have to do your research, and then decide what is best for you. It sounds like you have been doing a lot of research, and coming here to ask questions shows that you want to do the best that you can for your tank. Kudos on that!

I wish you the best of luck.
 
Both live rock and Marco rock will be able to process ammonia from fish, which is their primary filtration task. Live rock hopefully can add small animals that help with cleanup and provide live food, along with coralline. It can contain pests, too. It's possible to do a mix, too. The choice is a personal decision.
 
So all in all then while LR is not nesisary for a sucesful reef tank nor from what I can tell is a prerqusite in owning one but there are added benefits in adding LR which in most cases will out way the potential pest issues that may arise from the LR.

On the other hand the purpose of the rock it self wether it be live or not it simply for the surface area both on the surface and deep within the rock it self which creates both the anarobic and arobic conditions needed to handle the bio load of the tank.

If I want the bio diversity of the LR and still limit the chnces of introducing what could be considered a pest all while still keeping my intial start up costs down and while remaining responsible in the hobby then it would be a goo idea to perhaps see the 80lbs of dry Marco Rocks I just got today with perhaps 5 or 10lbs of LR?

Instead of a DSB in my fuge/sump I could simply run with a 3 inch layer of Live sand in there with some chato and some rock rubble? Would this be benifical in anyway a comprimise to not keeping a DSB but still have some enefits from the live sand even though its not the prefered 6 or so inches or would it be a total waste of time money and sump space just to do a 3 inch layer of Live sand?

The reason I went with the recurculating skimer was not only for the cleaning the water twice and its preformance but also it frees my sump up for more of the fuge type things. Would you sugestion be in terms of my filtration is concerned I would like to have sme Live sand if it would be worth keeping in the manor I sugested rock rubble and chato I have a 3 section sump by the way, I have enough room in the sump for he skimer if ned be. It is made of a 30 gallon tank first section I was planing on the chato Live sand and middle larger section for the rock rubble but I am open to ideas on how to set this up the third chamber is for the External pump which I have drilled for a bulk head thru the glass.

Please provide me with some ideas and so forth on filtration set up and if there is any more thoughts on my original pot please I am looking for more information as always.
Thank you
 
There are two different camps when it comes to LR vs. dry rock. Each camp has their reasoning and there is at least one thread on this board where this is discussed in great detail - it's probably 100 pages long by now.

If you search for that thread, you will notice that a lot of the LR advocates have been successful in this hobby for multiple decades, so they know their stuff. They also make a great argument for biodiversity in your system, a biodiversity that you would not be able to replicate by buying specimens.

Personally, I went all LR in my 75. I was very careful in my selection and went with fully cured, very porous rock from an LFS I trust - and they gave me a great price. I did have a couple aiptasia and a couple mojanos, but I was able to get rid of those very easily with a little aiptasia-X. I have bristle worms, peanut worms, copepods, amphipods, stomatella snails, asterina starfish (some will argue these are a pest, but I disagree), brittle stars, various sponges, purple coralline, red corralline, and a whole host of other things that I haven't identified yet. Because my rock was fully cured, I had a very short cycle (2 weeks).

The fact that I have all this life in my tank makes the start up process so much more enjoyable. I have three kids and they have each spent several hours at night with a flashlight checking out all the cool critters. I have a couple firefish in quarantine right now, and if I didn't have all this cool stuff already in my tank, I would be dying to rush the process and get the fish in the DT, which would be a bad thing.

On the DSB vs. SSB vs. BB (bare bottom) front, you will also see varying opinions. If you investigate DSB's, you will find that the same issues that cause people to try to avoid anareobic areas in FW can also crop up with a DSB. Keeping a DSB has its own set of rules and husbandry that seemed like too much for me, so I just went with a refugium with some chaeto and a shallow bed in my DT. I figure I am going to be doing weekly water changes anyway to replace trace elements, so I am going to be exporting nitrates when I do that. But there are others that can make a DSB work, so if you want to go that route, just do your research.

The bottom line is that there are many, many, many different ways to do this hobby and be successful. You have to do your research, and then decide what is best for you. It sounds like you have been doing a lot of research, and coming here to ask questions shows that you want to do the best that you can for your tank. Kudos on that!

I wish you the best of luck.

Thank you, yes I have been researching a ton and lising to pod casts and so forth reading other threads and responses for my own benefit and generally following a long listening twice as hard as I speak. How do you like thoes evo power heads? is it enough flow in your tank for LPS even if I ran them off of a timmer or would you like to have maybe one more perhaps one of the 750's for a little more kick in there? and how do you have them set up? Thank you for your responses I am considering all the options and with so man difrent ways of filtration comes along a whole lot of confusion without definitve ways of doing things it makes the noob a little nervous as to what to do and that were I am at rite now. I certainly want to do things rite practice proper animal husbandry and give my creatures the best I possibly can thank you please keep up with the help thank you!
 
Seeding with a bit of live rock is a reasonable idea. Some companies sell cultures of small animals, too, although I think some of the products are a bit pricey.
 
I think your on the right path for success. Im in the process of building a second tank right now and debated wether or not to buy live rock again or not. I opted for dry rock from bulk reef supply. Very similar to marco. I will be using a 20 long as my sump,ill post pics at the bottom of my current sump to help you out. In the display it will be all dry rock. My fuge with a 2" sb and some rock from my current display will be introduced to help the cycle out. I highly suggest you soak the dry rock first for a couple days with a piwerhead in the tub. Then change the water to saltwater for about another week. This will get the phosphates down. Imo i would never buy lr again due to pests. You can also get a cup of sand from a local reefer once your cycle completes to help seed the tank. Here is a pic of my sump. 1st section is intake and skimmer, 2nd is fuge, 3rd is return. 2&3 are seperated by 2 baffles, 2nd baffle is same height as the 1st on the intake side. The 3rd is raised 1" above the bottom for water to flow under. This is just a 10 gallon but im using tje same dedign on the new build. Hope this helps you out. I like the idea of the sump not only being a place for equipment but as a secondary display. I have a couple critters in my fuge right now, such as 2 blue leg hermit's and a brittle star. I also keep my frag plugs in there for future use.
48d0ccb3-ba2a-711f.jpg



Sent from my overpriced phone using Tapatalk
 
Last edited:
Wow sorry about the spelling there. Silly phone keyboard.


Sent from my overpriced phone using Tapatalk
 
Back
Top