+1 Do a daily nudi egg search. They look like a spiral of white eggs about 1/4" in diameter. Best spots to start looking would be need any monti that is suffering or has tissue loss. The eggs will be in the shadows and in crevasses. Scrape them with toothbrushes, toothpick, Water-pick, teeth cleaning tools work well. If you don't have teeth to take care of I am sure a screw diver will work.