A stye is an infection of an oil gland in the eyelid. It produces a red, swollen, painful lump on the edge or inside surface of the eyelid. Styes usually occur closer to the surface of the eyelid than do chalazia.
The most abundant salts in the ocean are chlorine, sodium, magnesium, sulfur, calcium, and potassium. Ocean salinity is affected by multiple factors including ice melt, inflow of river water, evaporation, precipitation, wind, wave motion, and ocean currents.
Yellow Tang Fish. The Yellow Tang is one of the most popular of all saltwater fish species. The yellow tang fish comes from the Hawaiian islands and is one of the better marine surgeonfishes for a beginner with a fully cycled aquarium.