pederson's shrimp

I have an IM14 (14 gallons total, probably 13 of that in the display) that sits on my desk. I currently have three sexy shrimp, two Pederson't anemone shrimp, one snapping shrimp and a peppermint shrimp. Oh, and four masked gobies (tiny fish, around 1 inch long) The tank doesn't look crowded but...

This morning I've been at my desk watching a Pederson's anemone shrimp cleaning my sailfin blenny. The blenny is sitting still. It briefly got annoyed and swam off but she came right back to the same spot and the Pederson's is back at work. I didn't know they'd act as cleaner shrimp. It's a lot...