Aptasia or other?!

[Flash]

I have searched and searched but have not found anything regarding what's in my tank...

it's TINY... very tiny right now just big enough to see it, and it's a white/clear color... my first thought is aptasia... it's only on one little piece of my rock... but I've seen three little white.clear thingy's that look like aptasia.. but super small! lol! any help? I wish my camera was good enough to get a pic.