These are crazy to see under a microscope. I keep a reef aquarium that at one point had a problem with dinoflagellants. I dosed silicates to induce a diatom blo

These are crazy to see under a microscope. I keep a reef aquarium that at one point had a problem with dinoflagellants. I dosed silicates to induce a diatom bloom that out competes the dinoflagellants, and as a fun side effect saw a huge explosion in my sponge population. Any time I'm sampling the water under the microscope, I see sponge spicules these days. Makes me happy.