Ok, well I'm not putting anything in the tank for another few weeks anyway, so if they are blood suckers they'll have to be genetic freaks to go over a month without any live grub.
I tried to photo one but it just looks like a piece of sand. I've also found more little filter feeders, they've got white tubes and then their fans.
I also saw another type of 'pod, looks like a little crawfish and I've seen these at the store where I buy my supplies so I know they're good. They were in a display 'fuge. Anywho, if the little buggers can live for another 2 weeks without any food then more power to 'em, I guess they're the good kind. I haven't added any food of anytype to the tank so they snuck in on my live rock a few weeks back.
As for the photography, I just put my camera on it's highest setting and then let it focus, took the shot and then cropped out everything I didn't want to show. This seems to work.
Thanks everybody!!!