Originally Posted by heyhi
Its about 77degrees f . Should I change the water each use. I did the first 2 days but not yesterday.
The shark swims around more but still just lays in a corner once in a while for a few min, and i dont see any spots falling off. Now a few more fish have spots
I also don't know what "tank buddy" is, but I suspect it is not the best. I have not heard of changing water every day when using ich remedies. Mind you, this may work, perhaps someone on here has used it and can tell us.
All ich remedies I have read of or used require continued treatment for a week and the medication must be kept at full strength throughout because of the life cycle of the parasite, it can only be killed in the free swimming stage. The white spots you see are cysts with the parasite imbedded in the fish and nothing can attack it there. When it falls off, the cyst breaks and dozens (hundreds, not sure) of parasites go swimming looking for a host; it is at this stage that they can be killed. When one manages to get through and infect a fish, it buries itself in the fish and remains there for a couple of days. So you will see spots for a few days once you start medication, and sometimes one may get through afterwards. I have had spots disappear completely by day 5 or 6 most times.
Many ich remedies are copper-based, and copper is lethal to fish (and plants) in sufficient quantity. Which is why many recommend half dose with sensitive fish (catfish, tetras). Aquari-sol is said to be safe for these fish, and in my experience the fish still do not like it, but it has far less effect on them than other copper-based medications I have used before.
Re temp, most say to raise it, and Aquari-sol also suggests raising it if the fish can tolerate it (some fish can't tolerate high temperatures so you have to balance this out). Personally, I leave the temp at 78-79 which is where my tanks normally are, and Aquari-sol has done the job with no fish loss.
There are other ways of curing ich, and its up to you which you follow. Those of us on this forum can offer what has worked for us, and I would be the last to say that my method is "the" method. But it does work and has for me, several times (I'm ashamed to admit I have had ich more frequently than I should).