I'm serious, I always have some diatoms on the sand under the anemones and they go away when I clean the glass.
I must remember to film it.
copepods, rotifers, microorganisms, they have no reason to inhabit clean glass, so they move to the sandI almost don't have a cleanup crew, it's just 3 or 4 really tiny ermit crabs.
I really need to film this. I will begin filming in the morning, clean the glass, see what happens to the sand through out the day and render a timelapse.