Cycling and water changes

mntcfish

Member
Hello - I have been cycling my tank for about 2 weeks now and have not done a water change - just top offs. Should I do a water change? If so how much? I also have noticed a brown sort of algae on my sand band - recently. Any thoughts????
 

subie41ife

Member
What are your levels? Did you start you tank with live rock? live sand? You don't want to do a water cahge till you all you levels are down and nitrates are getting high.
The brown algae is usually a sign that you tank is cycled and have high nitrates.
Post us your water levels before you do anything.
 

spanko

Active Member
A good number of posts that have to do with cycling are mostly concerned with things like “how can I start my cycle”, “Is my cycle over”, “I am reading nitrites and nitrates but never saw ammonia”, and a myriad of other questions related to the initial set up of a bio filtering system. While knowledge of what, why and how cycling is important, there are some other considerations that should go along with the set up of a new marine aquarium.
First what is cycling? “The nitrogen cycle of an aquarium is a chain reaction in nature resulting in the birth of various types of nitrifying and denitrifying bacteria, each with their own job to do. The three components involved to make this happen are ammonia (NH³ or NH³+4), nitrite (NO²), and nitrate (NO³). In general the nitrogen cycling process usually takes about 30 days, but there is no exact time frame for this process to complete its task, as each aquarium is different. Factors such as how many fish, other livestock, and organic matter is present in the tank can vary the completion time, one way or the other. Testing your aquarium water during cycling is very important, as this will tell you what phase the aquarium is in at any given time throughout the process.”
Okay so academia has told us what the cycle is. We will not get into the details of this anymore than that for this discussion. What is important to note however are the statements “Factors such as how many fish, other livestock, and organic matter is present in the tank can vary the completion time, one way or the other. Testing your aquarium water during cycling is very important, as this will tell you what phase the aquarium is in at any given time throughout the process.”
So what we will discuss here is the source of that organic matter and the actual process that we follow in cycling an aquarium. All inclusive, probably not, but at least a basis from which to make some decisions. So let’s start off with;
 

spanko

Active Member
HARD CYCLING
If there is a standard in cycling a marine tank this is probably it. Get a glass box, put in some substrate, rockwork if you desire, saltwater and throw in a source of organic matter. This organic matter can range from live rock, fish, fish food, cocktail shrimp, ammonia, all the way up to someone urinating in the tank. (Please don’t pee in your tank) After the organic matter has been introduced the aquarist is advised to perform ammonia and nitrite testing to watch for the “cycle”. No filtering, no water changes, no skimmer, no lights, just let it rip. Without regard to the levels of ammonia or nitrite reached the aquarist was told that once the ammonia and nitrite spiked then went back to zero, low and behold your cycle is complete. Do a water change and begin to add critters, usually a small cleanup crew and over the course of the next few weeks they could start to add fish and or corals all the while watching for ammonia to spike again. If it did spike there were of course certain reactions that were needed along with the verbal abuse that sometimes came along with doing things too soon.
Over the history of starting a marine tank it became unpopular to use fish as the source of the organic matter because of the toxic or deadly levels of ammonia that occur in the tank during the cycle. Certainly this was inhumane and torturous to said fish and of course the bashing of new people for using fish began, even though this was the norm in the beginning. After a time It became common knowledge that there was in fact enough of the organic matter needed on live rock to facilitate the cycling process. This led to live rock becoming the standard by which most new people are instructed to start their tanks with.
So capitalism being what it is, retailers dealing in pet supplies see the opportunity here and start to get in large orders of rock from the ocean. Then in an effort to “help” the new aquarist along they begin to sell differing qualities of live rock. Where it comes from does not matter for this discussion but the fact is that you can purchase uncured live rock for one price and cured live rock for another higher price. The difference here being that the uncured live rock is “straight from the ocean, boxed up and shipped to the retailer and available to the aquarist fresh from the ocean water”. Then for some additional cost the retailer will perform some magic to the rock called curing. This entails the retailer keeping the live rock in bins at their facility, cleaning the rock of any decayed matter that has accumulated from the source through the delivery, water changes etc. etc. etc. so that the aquarist gets pure rock with no nasty die-off that may cause an ammonia spike in their tanks. This cured rock has the nitrifying and denitrifying bacteria already in place and can be used in a new setup as a ready to …..um……rock (hee hee) addition to the tank. Of course there is always some amount of die-off even in cured rock that will continue to deteriorate and produce ammonia, however there may be enough bacteria on the rock itself to take care of it. The only thing, in theory, that the aquarist needs to be concerned about is the additional bio load heshe puts into the tank and the subsequent increase in bacteria needed to convert it. All good, all nice using cured rock should help to reduce the amount of time that is necessary to have an up and running marine tank. We’ll just leave it like that for now. So on to the;
 

spanko

Active Member
SOFT CYCLE
Now let’s talk a little about uncured rock. Rock taken right from the ocean, whether from an established reef or from an area that has had dry rock dropped into it with the goal of establishing it as live rock. This uncured rock comes to the retailer fresh from the ocean and is then shipped to local fish stores or in some cases direct to the aquarist with all of the life and the subsequent death on it. Some fish stores may turn it into cured rock hoping to get the higher price that cured rock demands. Or they may sell it as uncured rock. Some aquarists may put it directly into their aquarium to “cycle with” or they may cure it outside of the tank so that they can use it later. Some may cure or use it to cycle their tanks as noted above in a hard cycle where no consideration is given to how high the ammonia and nitrites get. This hard cycle kills off some if not most of the life on the rock they paid a premium to get. Remember it is less costly than cured live rock, however it is more expensive than dry rock that can be used in our tanks and just seeded with a pc. or two of live rock.
Soft cycling is a method by which the attempt is to retain as much life as possible on the nice live rock you paid a premium for. It starts the same as a hard cycle, get a glass box, add some substrate if desired, add the live rock and the saltwater. Here is where things change though. During a soft cycle the aquarist is advised to run the filters, skimmers, lights. Heshe is also to monitor ammonia on a daily if not twice per day basis and if the ammonia is shown to rise to a reading of .5 they are to immediately perform a water change. And every time thereafter when they see a reading of ammonia at .5 boom, another water change. Keep the skimmer cup emptied, Keep the filter floss, pads etc clean. Do everything they can to keep ammonia below that magic .5 reading. Because you see. Live rock contains ….. er…..well…..life. And in a soft cycle we are trying are hardest to keep that life……um……live! You would be amazed at the life that will flourish under these conditions. Sponges, feather dusters, snails, plant, corals, worms, pods etc. etc. etc. all of the things that we are trying to replicate in our small glass boxes. All for a little more work and a little more expense, to get closer to a small system that more resembles the ocean that it originated in.
Soft cycling is not for everyone. Some of us require a more antiseptic looking reef tank. But for those of us that wish to observe life as it exists, both the good and the bad, soft cycling may be something that you want to look into on your next, or even first setup.
Thank you for reading, I hope I have given some a little information to think about.
 

pezenfuego

Active Member
Originally Posted by srfisher17
http:///forum/post/3251549
I agree! Mods, help!
The reason I don't understand it is that he wrote it a LONG time ago and I'm positive at least one mod would have seen it.
In my humble opinion, there is NO other thread that is more deserving of being a sticky.
 

mntcfish

Member
Really appreciate the help and advice. One more question. I have purchased a API Saltwater Test Kit containing test for high ph, amonia, nitrate, nitrite - there is also a reef test kit. Do I need to drop the dough on both of these kits? thoughts....???
 

pezenfuego

Active Member
Originally Posted by mntcfish
http:///forum/post/3251583
Really appreciate the help and advice. One more question. I have purchased a API Saltwater Test Kit containing test for high ph, amonia, nitrate, nitrite - there is also a reef test kit. Do I need to drop the dough on both of these kits? thoughts....???
If you're planning on getting coral then you'll want calcium, pH, nitrate, phosphate, and kH test kits. I personally never tested for NH3 or NO2- much once my tank was fully established. Then again they are always good to have around I suppose.
Bottom line, if you want coral, you should get the reef test kit.
 

mrcrabbycrab

New Member
I finally got my tanked cycled (about one month) to the point where nitrate has risen. All other levels are right on per my API test kit. From reading above it seems at this stage I should do a water change. Anyone have any good tips? As in; what's too much or too little. Mixing salt. Warming the water. Additives to de-chlorinate, etc. I'm new to the salt water world and thus far things are going well. I really don't want to screw anything up.
Thanks!
 

pezenfuego

Active Member

Originally Posted by mrcrabbycrab
http:///forum/post/3251603
I finally got my tanked cycled (about one month) to the point where nitrate has risen. All other levels are right on per my API test kit. From reading above it seems at this stage I should do a water change. Anyone have any good tips? As in; what's too much or too little. Mixing salt. Warming the water. Additives to de-chlorinate, etc. I'm new to the salt water world and thus far things are going well. I really don't want to screw anything up.
Thanks!

Hey man! I'm really psyched for you. It would be very much appreciated if you would start a brand new thread though. They are welcome, don't hesitate to make one.
We kind of have a little discussion going on here and your question is only semi-relevant. I, along with several others, would be more than happy to answer any questions you have, but your odds of getting an answer in this thread are slim.
Thanks pal!
 
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