I

ICH

The fish parasite Cryptocaryon irritans. The main symptom of infection is small white spots on the body of the fish, like grains of salt. Also called White Spot disease.

INCANDESCENT

Artificial light source produced by an electric current passing through a wire inside a vacuum, heating the wire to high temperatures to produce light. Compare Fluorescent. Only five percent of the energy output of Incandescent lighting is light, while the remaining 95% of the energy output is heat.

INFRARED (IR)

INSIDE DIAMETER (I.D.)

Used when measuring tubing dimensions.

INSTANT CYCLE

To Cycle an aquatic system using bacteria (Biofilm) from an existing system, or a commercial product Bio-spira or Cycle.

INTERNAL FILTER

Any filter mounted entirely inside the tank. The Sponge Filter is the simplest example.

INVERTEBRATES (INVERTS)

Animals characterized by a lack of a backbone or internal skeleton. May have an exo-skeleton or shell.

INSTANT OCEAN (IO)

A brand of aquarium salt

IODATE (IO3)

IODIDE (I)

IODINE (I2)

IRON (Fe)

The most important trace element for plants. Iron deficiency causes Chlorosis; a disease that makes the plant leaves Yellow.

 

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