quite effective in controlling the fungus. I add it about twice a week. Fungus is still present, but I clean it off when it get even slightly bad and use the sulfa qilinine. Controlled. Sulfaquimine added at 5:00 P.M. 22 October - 1:00 P.M. I returned after a weekend field trip and found that some [illegible] had put a large ("") Cichlid in my aquarium to "serve" it. Saturday I had only been in the aquarium a few minutes, and all six fish were still alive when I arrived later - but heaven only knows what it may have introduced. One of the two larger fish (the one that is a dark brown color while all of the other five are very light and transparent) looks like it is dying - it is very slow moving and rests on the bottom. It is breathing very rapidly and swims as if its stomach was too heavy to stay afloat. 23 October Fish reported as dying yesterday