If the water starts to look muddy, put the shrimp into fresh salt solution immediately. Record the observed changes in a logbook or diary on a daily basis. Proper record keeping is the basis of all good science. Making a slide Making a proper microscope slide is a simple procedure, but it will take some practice before you get it right. Don't get frustrated.
Nobody gets it right the first time.
Once you get the hang of it you will never have a problem with it again. First, pick up a clear glass slide. You will leave fingerprints on the glass, and these can interfere with proper viewing. Carefully place a clear slide cover over the drop of water. Do not tilt the slide and remember to hold the cover only by its edges to avoid fingerprints.