Here is the thing...and this is applying all of my common sense and experience, which is semi-substantial even though I don't have a biology degree hanging on my wall....
First, you need to consider TWO items when you find Ich in your tank: #1.) How to kill or otherwise rid your tank of the Ich protozoa and #2.) How to do that but keep the fish alive in the end.
In my overly lengthy and notoriously boring post on the "salt and heat" treatment, which can be read by clicking HERE
, I refer to and cite the University of Florida's study and findings on Ich that TPIRman brings up above (that article can be viewed by looking HERE
, if you are interested in such things). Anyways, that article, along with the others I used, shows very clearly that salt and heat work well in an aquarium for treating this issue. Keep that in mind as you read further....
So, we know that when subjected to a higher water temp, Ich does a couple things:
1.) The more 'ideal' environment of living in water temps in the lower 80 degrees (F) range makes it grow faster, live shorter, fall off fish more rapidly...which ever way you want to put it.
2.) The most common information that I have come across states that Ich cannot reproduce at temps above 89 degrees (F), and/or dies at that temp. My thinking is that since it cannot reproduce at that temp, and since this higher temp also speeds up the life cycle of Ich, there is the appearance of Ich dying off completely.
However, and this is a big HOWEVER, what is not being addressed here is the second item I pointed out at the beginning of this rant....what effect will that high of a temperature have on the fish, inverts, and plants that we keep in our tanks? It is a big consideration, don't you think?
Hence, the information that 90 degree temps is not useful to everyone of us because we may have fish, inverts, or plants which cannot survive in that environment. As I have stated before, since we are giving out information to others, most commonly related to a fish or aquarium that we have never seen in real life and thus, do not know every bit of information or variable that may play a part in the success or failure of a specific treatment, idea, opinion, or even fact we give out, IMHO, it is best to make an attempt to suggest the most holistic (meaning something that works while considering any and all variables at the same time) approach available. So, for the record, this is why I often times skip a lot of these facts which are useless to many other than to prove how smart you or I am compared to someone else. It in no way means that I haven't considered them.
That said, lets keep in mind my original tidbit of information that I posted at the very beginning of this member's thread...warmer water holds less dissolved oxygen than cooler water. (That is a plain out, straight fact, that no one should be able to dispute or attempt to dispute by the way) My fear is that since we all probably have plants in our tanks, which, as I have learned since joining this otherwise fantastic forum, become a strain on dissolved O2 levels themselves, without warmer water, because they stop using CO2 in the night time and begin to use O2 at night. So, even if you could successfully raise the temp of our water during the day without detriment to our livestock, there is an increased chance that we might wake up to a bunch of dead fish in the morning.
Soooooo, this is why I am a big proponent of using salt and water temp in conjunction with each other. Why? Because you can probably raise the water temp in your planted aquarium to 85 degrees (F) with less problems than raising it to 90 degrees (F), WHICH STILL HAS BENEFIT in that the life cycle of ich is sped up, making those white spots fall off the fish and reproduce into its tomont, or thermont stage...which is the free-swimming stage of Ich, which is NOT visible to the naked eye for the most part, and the MOST common reason why people who stop treatment too early have a recurrence of ich....which is the MOST vulnerable stage of ich as far as meds and treatments are concerned.
Now, forget all of this junk about me proving myself or giving resources which support my ideas and 'pie in the sky' information....I did that and it didnt help. I challenge you to show us, most importantly the newer members of this forum who are depending on you for solid, reliable information that states similarities between Ichthyophthirius multifiliisthe AIDS VIRUS, the VIRUS which causes common colds, or GERM which causes TB. The bottom line is that as I said, you are comparing two totally different things here since Ich is a protozoa, or a unicellular, animal-like being (sorry for the wiki reference, but they are right in this case). Why is that important? Because the propogation of the myth that Ich is bacterial in nature leads many people to use anti-biotics to treat it, whch can cause a whole host of problems, including a continuing Ich problem.
My point still remains the same, a forum is worthless if the information and ideas that are being relayed are not dependable. This is not 'the good ole days' where one person can make a statement and without taking a trip to a library and reading several books, that person is taken at face value. I am giving you tons of information which all you have to do is click your mouse on to view. I assure you that it was easy to come up with these resources, it only took a couple finger movements and some scrolling through pages. I find it interesting that it is not as easy to find out about the 'heat resistant' strains of Ich which I feel allows for a reasonable assumption to be made that this is not really an issue. And to think....I am trying to agree with you in that both heat and salt should be used for ich treatment (although in much smaller salt doses) and yet you still want to disprove me consistantly. I know my stuff, honestly.