Biofilm - A slimy matrix produced and inhabited by bacteria which enables the bacteria to adhere to a surface and carry out certain biochemical processes essential to the Nitrogen Cycle.
Biofilm: A coating or covering on the surface of a living or nonliving substrate composed of organisms like bacteria, protozoa, algae, and invertebrate animals.
Old biofilms (large or tiny sheets of attached bacteria, joined to one another and the surface they grow on) can shed or "shale" off. Some of these loose fragments of film or individual bacteria may be in the water column temporarily.
The development of biofilms inside plumbing helps to digest potentially toxic substances leaching from plastics, but it also results in a long-term "clogging of the arteries" that reduces flow rates.
In order to identify bacteria responsible for nitrite oxidation in aquaria, clone libraries of rRNA genes were developed from biofilms of several freshwater aquaria, Analysis of the rDNA libraries, ...
Nannostomus are also avid biofilm grazers and, for most of the species, algae is an under-reported staple of their diet. In most species the males will establish small territories and defend them.
It does not self-clean of old biofilms, the internal pores clog, and the use of a fine pad is required downstream of this medium to avoid the possibility of fine glass particles doing impeller damage in the drive unit or being pumped back into the ...
The water of Lake Niko is extremely nutrient poor and even during midsummer no significant biofilm develops on stones and plant surfaces.
 See also: Water, Color, Plants, Fish, Filter
  
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