can brittle stars, sandsifting stars, chocolate chip stars, etc kill fish or invertebrates? I have 2 baby clownfish, 2 adolescent PJ cardinals, a baby YWG, and a adolescent diamond goby. My invertebrates are a full grown skunk cleaner shrimp, 8 hermit's, a turbo snail, and 3 astrea's. I may add a pistol shrimp later today. Would they be in danger?