Tiny bugs? help, my first orchid..

[Melanie]

Today when watering my Dendrobium I noticed tiny little bugs scurrying about the roots, although they didn't seem disturbed by the water. I don't see them anywhere else on the plant, although there does seem to be some kind of cluster of white fungus, which could very well be egg sacs of some kind.

I've done a little research and it seems they might be mealybugs, but I thought I'd ask a forum! Please help, this is my first orchid and I've watched 5 buds bloom- i'm in love with this plant!

Also- how did they get there? I've had it for about a month, it's my only plant and it's indoors. If I could learn prevent this in the future that would be great as well.