What is pH. pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH. This may seem like a confusion way to express these reationships, and it is, until you understand what pH stands for.
Because they depend on sunlight for photosynthesis, diatoms generally live in the upper 200 meters of oceans and bodies of fresh water. Some species of diatoms simply float in the water currents near the surface.Others attach themselves to larger floating objects or to the sea floor.ecause they depend on sunlight for photosynthesis, diatoms generally live in the upper 200 meters of oceans and bodies of fresh water. Some species of diatoms simply float in the water currents near the surface.
Silicate is used by diatoms in the formation of their frustules (a glass-like âshellâ in which the diatom lives), and it is true that in some cases addition of silicate to an aquarium can result in diatoms getting a competitive edge over other algae.hat is the reason that you are likely to see diatoms on primarily or only the walls of your glass aquarium â diatoms have a much easier time pulling silicate out of glass aquarium walls than out of quartz sand grains.