How to observe the microfauna in your tank
Today I was looking at a corner of my tank that was getting a shaft of evening sunlight. I have 1/5th grown Orange Sakura shrimp that are just starting to look like more than a white splinter so I really focused on him to get a good view at his progress and then I saw it....
hundreds of little white specs moving around.
I got my headlamp (petzl tikkina) and shined it sideways thru the aquarium while looking thru it and againt I spotted them. They're probably paramecium or some kind of single cell creature but it's still cool to realize that what looks like clear water is actually crawling with life.
BTW if you try this, the light has to be pointed at least partway towards you so that they have some backlighting, otherwise they become invisible again. And the brighter the light you use, the better. Direct Sunlight is best.