^^ OK ... but why do they appear .?? they are right from the time when i filled my tank with water .. i cleaned everything so well before.. but still its dere... and the filter i have is ony of the good ones as i have seen them in many tanks and they work fine.. i think its not becuase of filter ..
graver... Diatom's are any of numerous microscopic marine or freshwater algae having cell wall's containing silica. They are common in most aquarium's, but are more noticeable in new tanks. They are often mistaken for a bacteria bloom. As your tank cycles and matures they will become unnoticeable, and your fish will snack on them off ornaments and plant leaf's along with the other types of algae, hope this help's... ___ John