I have a lot of tiny insects in my amaryllis. They live in the soil, run around in and out of the pots, and fly round the house. They seem to become more active when the plants are watered. They are tiny and black. I have changed the compost, washed the pot, cleaned the roots, and still they are there. I can't see that they are doing any damage--it's just that they are a nuisance. I have 11 plants now, which I have taken from my original one (which is 10 yrs. old and is a stunning bright red).