Cycling tank without LR or L.sand..

I don't see why you need to buy anything. I've done this dozens of times. Just take a small scoop of sand from a running system, dump it in, and your good to go. In fact, that little cup of sand, will contain much, much more of the correct living bacteria, than any commercial product...

 

well im not planning to add any bottled bacteria as i dont mind waiting.

 

The issue I see is you will have no source of bacteria this usually comes from a seed scoop of sand our a piece of LR. With out this your tank well not cycle

 

well as far as iv heard, bacteria are air born, once they get food, they miltiply. well if it takes a long time, il add seachem stability or mb7.

 

There is nitrifying bacteria and denitifying bacteria that can be found just about anywhere. So, I agree that a tank can cycle without any addition. There can be other bacteria and beneficial organisms however, that may not be so readily available. They will be readily available in an established tank. I do not see any reason why they would nearly as available, if available at all in seachem stability or mb7 for example. There may be some, but nothing will be as complete, as what you would find in an established tank.

 

the prob is my tanks have high nitrates 50ppm even with low bio load but my corals and fishes are fine. so this is the reason i dont wana use anything old. i bught use some coralline algae to promote coralline algae growth.

 

So are you saying that the reason you currently have high nitrates is because you used coralline with the other systems, and you did not provide enough or the correct types of beneficial bacteria?

Your other systems are only a couple months old right? That would most likely be the cause of elevated nitrates if you are feeding appropriately, the test is accurate and or you are not exporting the nitrates by say routine water changes or macro algae.

I am not making the connection between the reason you do not want to use anything from the running tanks to seed the new tanks. Disease I can understand but not elevated nitrate levels?

 

well im gona use dead dry rock and plain aragonite sand. nothing will be live, but i like the look of coralline algae, so ill supplement coralline algae from my other tanks and keep my calcium alk levels good for growing coralline algae. i just wana go all over again, to check my wether this time without using LR or LS willmy nitrate levels be high like my other tanks or 0 that im looking for. it will be a fish only tanks with an anemone.

 

IMO using all dead (Dry) live rock and sand will only cause a true complete cycle to be far longer that with good quality live rock. There is no way to bring the 2 types of beneficial bacteria to a sterile system

 

Simple nitrifying bacteria is really ubiquitous, it's probably on the dry rock already. It's not specific to saltwater. So, it will get in the system no matter what. I've done this, with nothing more than dryrock, drysand, water and fish food and it still cycled in about 30 days... It may cycle faster with an external source though, idk. Also, as mentioned, for maturation (vs simple ammonia cycling) there is likely lots of other bacteria involved.