here are a bunch of little red/beige pointy things in many of the caves
of my rock and are no more than 3mm in size.
These are probably foraminiferans. These little creatures are basically shelled protozoans, one celled organisms (Subphylum: Sarcodina - the amoebas). They form shells primarily composed of calcareous material, with siliceous material from sponges, or other organic material. They are mostly sessile (non-moving), but can move with the use of temporary structure called a "pseudopodia". This little "arm" reaches out and pulls the rest of the critter along. In any event, they are harmless bacterial/detrital consumers. There are many different shell shapes and colors that these guys may have, see more forams
