After fertilization this is one of the first stages of life for fish and invertebrates. The larvae looks different from the adult form of the organism.
LFS is an abbreviation for Local Fish Shop/Store.
LED is abbreviation for Light Emitting Diode, LED aquarium lighting is very popular as the lights run cooler then standard lights, use less energy and can provide many different lighting configurations.
LPH is abbreviation for Liters Per Hour and usually refers to the flow rate of aquarium filters or power heads.
Live rock is rubble that has broken off the coral reef structure and is inhabited by many forms of life that can be beneficial in the saltwater
Live Sand :
'Live sand' is sand that is used in marine/full saltwater aquariums only
, it is populated with beneficial bacteria, invertebrates and other microscopic life forms that aid in the breakdown and conversion of elements within the aquarium.
LR is abbreviation for Live Rock.
LS is abbreviation for Live Sand.
Lumens is the total output of a light source.
LUX is a measurement of the intensity of the light. Sunlight on a clear day is approximately 32,000 lux. 1 lux = 1 lumens/meter2.