N

NANO

A small aquarium.

NANOMETER (NM)

A unit of measurement of the wavelengths in the light spectrum.

NATURAL NITRATE REDUCTION (NNR)

NATURAL SEAWATER (NSW)

NEW TANK SYNDROME

Condition in which toxic fish waste products exist in the aquatic system because the Nitrogen Cycle has not yet been established.

NITRATE (NO3)

Mildly toxic product at the third stage of biological filtration. Nitrate can be used by plants, further processed into nitrogen gas through Anoxic bacterial processes. Can be used as a gauge to tell when a partial water change is needed.

NITRITE (NO2)

Intermediate nitrogen compound in the biological conversion of Ammonia to Nitrate in the Nitrogen Cycle. Nitrite is toxic to fish, but less so than Ammonia.

NITRIFYING BACTERIA

Nitrosomonas spp. oxidize ammonia, converting it into nitrite, while Nitrobacter spp.  oxidize nitrite into nitrate. These bacteria, however, do not remove nitrate, phosphates or other undesirable elements such as silicates and heavy metals like copper and lead.

NITROGEN CYCLE

The formal name for the biological cycle in which toxins are broken down into less harmful products by Aerobic  and  Anaerobic bacteria.

NOCTURNAL

Active at night.

NODE

The part of the stem from which one or more leaves arise.

NON-TRAUMATIC PUMPS

Significantly larger and less energy efficient than traditional pumps.  The non- traumatic pumps move liquids with minimal sheer stress. Both the Air Lift (Water Blower) and the Archemedes Screw Pump uses gravity to force the water back down through the tanks.

NORMAL OUTPUT (NO)

Fluorescent lighting.

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