After racking the brains of some of the fish keepers on the forum really. Today I woke up and spotted that the 2 clown loach I have had in my community take for 3 weeks or so have developed a fairly severe case of white spot. So, got hold of some treatment for this and lunchtime today I have got a treatment in the tank. I have looked on google at seems turning the tank up a degree or 2 will speed up the lifecycle of the parasite thats infected my fish, then the treatment will work when the parasites are at the "free swimming" stage. On the bottle it says to re-treat in 4 days, then a further 4 days and the treatment should be complete? What I dont want to do it stop the treatment and the free swimming parasites lock onto my fish again and start the process again, is it advised to keep the treatment going a bit longer to make sure a re-occurance is less likely? What about ornaments and plants? Will these need removing and cleaning to remove any infectious particles? This evening I came back from work and having not seen my pleco for a couple of days decided to hunt for him, alas, he was dead, and looked like he had been for a day or so. He didnt have white spot on him but is it possible that the early stages of the infection may have been eaten by the pleco as they are eating off rocks/plants and ornaments all day. Infecting the plec internally? The rest of my fish all have a low number of spots on them which I hope wont be a major issue with treatments already being underway. If in the worst case scenario I lose every fish in there, will I have to completely remove all the water and basically start from fresh? The whole tank has been setup for about 14 weeks, it was left for 3 before the first fish were introduced then slowly added more over the past 11 weeks or so. The clown loach being one of the more recent arrivals. Just after ideas, tips and things to be aware of from other tropical fish keepers who may have been in the same situation as myself. Any help is much appreciated! Probably the best part of £60 of fish in the tank that I would really not want to lose!