This is the third site on which I have seen this topic discussed at length in the past 2 years. However, there is one difference between the discussion here and those on two other very well known forums. On them Dr. Hovanec is a member and actively participated in the discussions. He even sent some users free samples and they then reported back the results. In a number of instance he also tried to help out folks who for some reason had failed to read and follow the directions properly or had other cycling related problems.
One forum (where I am not a member) has a single thread with 89 posts in it and a number are by Dr. Tim (aka DocTim). He works to help folks who are not using the product properly. He has also explained why too much ammonia will actually be harmful to the cycle and the bacteria and the same for nitrites. On another forum (where I am a member), possibly the largest general fish forum in English, there are about 7 different threads in which he has posted regarding cycling issues.
Anyone can read the first forum and its 89 post thread. The second forum only lets you read the first and last pages unless you are member. I would really love to be able to link folks here to those sites and threads so you could not only read what the members experiences were using his product, but could also see the answers and explanations he provides. Moreover, he patiently answers questions in these threads and pretty much has converted a lot of doubters.
Since site policy prohibits me from posting the links so you folks can read the above mentioned threads, I can at least suggest how you might be fortunate enough to get Dr. Hovanec to become a member here so that you could "talk" to him yourself. Any of you who have posted in this thread that you have used his One and Only and it did not work need to email him and let him know what your experience was and that you are a member here and you have posted about his product not working. With any luck he will show up and try to figure out why you had no success when so many others have and how to change that. Failing this, a clever Google search should enable you to find these forums and threads on your own. Either way you will all learn a ton as I did.
One final note, I am an all fw person. However, if one searches for info on Dr Tims One and Only some of the larger sw/reef sites come up and there are a number of folks on them who all swear by his product for their sw tanks. I am sure there must be some, but all I read on the sw sites were raves, nobody posted that it didn't work.
I think the fact that you have seen it discussed so much recently for a reason... people don't want to spend two months or so cycling a tank. People don't get a fish tank because they have dreamed of using water parameter test kits!
However, there has been a lot of problems with their tanks after using the products. (Partly I think the issue is that folks didn't still do a fishless cycle, even with the additives, which would ensure that the tank was ready to go with fish before putting fish in the tank.) The big issue is that there seems to some level of complexity with the product. If it were as simple as people really need - simply pour it into the tank, wait a day (or less) and add fish, then this wouldn't be an issue anymore. I say this because I have seen the way people buy fish. I've been lurking in a few LFSs recently, and watched folks. I've seen teens through 20-somethings picking up a fish and then taking the fish in the bag, and walking through the tank area trying to find a tank that the fish will fit into! Obviously, they have done no research leading up to the purchase, and probably aren't going to put a lot of effort into ensuring the best for their fish... daily water testing, daily water changes, etc. These folks are not preparing to do a fish-in cycle, nor are they prepared already with mature media. This is an impulse buy and they are setting themselves up for disappointment. If an idiot-proof (pardon the term) product existed, a lot more folks would stick with the hobby, and if more people were hobbyists, chances are that a lot of the abusive behaviors would be more vilified, rather than having folks shrug it off - "after all it is
just a fish". (sarcasm added)
TwoTank, I would very much enjoy reading that thread. So, if it wouldn't be too much trouble, could you send me the link in a PM or something?
I did find this:
fishforums.net thread from 2008 (DocTIm was last on this site in AUG 2010 - 6 posts, all in a thread called "Nitrifying Bacteria")
End of Day one results:
I spoke with my wife (since she has much better color sensitivity than I do), and we both concluded that the ammonia level was NOT the same as the one last night (4ppm), but not quite as light a green as the 2ppm reading. (We are using the API Master Kit). So, I will approximate the ammonia level after 24 hours to be 3-4ppm.
Long story short:
pH:8.4 (steady), NH3: 3-4ppm, NO2:0ppm, NO3:0ppm, Temp: 84F (noting the temp increase of a full 2 degrees over the past 24 hours, I dropped the setting on my heater by one click. I'll check it again in the morning.) My target temp right now is 84F, so I am happy about that, but I don't want it to go above 85 or so.