Why is your yellow tang getting orange spots?

What is the fetch when referring to coasts? Can adding too much or adding too fast make the diatomaceous earth return to bottom of the pool? Do goldfish die in just tap water? Why should you not put fishes in boiled water? Where is the bleed valve on a master cylinder? What is the realtion ship between a Clownfish and a Anemone? What color does indigo and salmon make? What is a piscapallion? Is a herring least common in a food chain? What a alage? Where ia a caudal fin on a fish? How do you repair an aquarium? What is the longest seahorse? Where do eels spend most of their lives? What are the four types of sharks that live in Curacao? What is the best way to defend yourself from a shark? Is a flounder cartilaginous? Can a guppy and tadpole share a tank? Which fish are top feeders? Human teeth are hard as?