I continue to discover different microorganisms in my black hair algea, Tokophyra. There are twenty or so tenticles slowly stretching in and out from both arms. These tenticles can secret toxins in haptocysts (little ball at the end of the tenticles) and are used by Tokophyra to pray on other protozoa.
Some Background from Wikipedia:
Tokophrya is a genus of Suctoria which are sessile, feed by extracellular digestion and lack cilia in the adult phase ( Once the swarmers have found a place to attach themselves, they quickly develop stalks and tentacles. The cilia are lost, but the underlying infraciliature persists throughout the entire life-cycle.) They are found in both freshwater and marine environments. They typically feed on other ciliates. Instead of a single cytostome, each cell feeds by means of several specialized tentacles. These are supported by microtubules and phyllae, and have toxic extrusomes called haptocysts at the tip which attach to prey. Its cytoplasm is then sucked directly into a food vacuoles inside the cell, where its contents are digested and absorbed.
Suctoria reproduce primarily by budding, producing swarmers which lack both tentacles and stalks but have cilia. They may also reproduce through conjugation, which is peculiar in involving cells of different size and often involves total fusion. The way in which buds are formed is the primary way the different orders of suctoria are distinguished.
Another article from Micscape about Suctoria:
Suctoria by Jean-Marie Cavanihac, France