Reef Related Acronyms

[BeltwayBandit]

It has been suggested that we compile a list of reef related acronyms. Please feel free to add your acronyms and I will add them to this list and post it at the top of this forum. Note, I will add your name to the credits and delete your post after I add the acronyms to keep this post concise.

From Reef Central's Encyclopedia http://www.reefcentr...&...d=2&ltr=all
AC - Activated carbon, chemical filtration media / alternating current
AC - Aqua Controller (Neptune Aquatics, also ACII or ACIII)
AEFW- Acro Eating Flatworms
AF - Aquarium Fish Monthly, magazine
AGA - All-Glass Aquarium, Aquarium manufacturer

AIO - All in One (typically a sumpless, integrated aquarium system)
AL- Aqualink, aquarium bulletin board
ARM - Aragonite reactor media
ATO - Automatic Top Off
ATS - Algae turf scrubber, reef setup technique
AP - Aqua Pod
BB - Bare Bottom (tank)
BC - Bio Cube
BF - Bow Front
BOD - Biological oxygen demand
BRK - Blue Ribbon Koi (a local fish store in Manassas)
BTA - Bubble Tip Anemone
BTW - By The Way
CC - Counter current, type of protein skimmer
CC - Crushed coral (substrate, calcium reactor media)
CPVC - Chlorinated polyvinyl chloride
CRI - Color rendering Index
CSL - Custom Sea Life, lighting manufacturer
CTA - Cellulose triacetate, type of RO membrane
CUC - Clean Up Crew
Cyano - Cyanobacteria
DC - Direct current
DD - Downdraft, type of protein skimmer
DI - Deionisation, type of water purification
DIY - Do it yourself
DSB - Deep Sand Bed

DT - Display Tank
EC - Egg Crate
FAMA - Freshwater and Marine Aquaria, magazine
FFE - Flying Fish Express, Mail Order Company
FLO- Fluorescent
FO - Fish only
FOWLR - Fish only with live rock
FPT or FNPT - Female National Pipe Taper, fitting with internal threads
FPVC - Flexible PVC
FW - Freshwater
FWIW - For What Is Worth
GBR - Great Barrier Reef
GFO - Granular Ferric Oxide
GHT - Garden Hose Thread
GPH - Gallons per hour
GPM - Gallons per minute
GPD - Gallons per day
HLLE - Head & Lateral Line Erosion (a fish disease)
HO - High output fluorescent light
HQI - Mercury (Hg) Quartz Iodide, a type of metal halide lamp
HOB - Hang On Back
HTH - Hope This Helps
ID - Inside diameter
IA - Inland Aquatics, mail order company
IIRC - If I Recall Correctly
IME - In My Experience
IMHO - In My Humble Opinion
IMO - In My Opinion
IO - Instant Ocean, brand of aquarium salt
IR - Infrared
ISO - In search of

K - Kelvin (a temperature scale that is referenced to Absolute Zero)
Kalk - Kalkwasser, German for calcium hydroxide solution or limewater
KISS - Keep It Simple Stupid
LED - Light Emiting Diode
LFS - Local fish store
LHS - Local hardware store
LPS - Large polyped Scleractinian (stoney) coral
LR - Live rock
LS - Live sand
MACNA - Marine Aquaria Conference of North America, held annually
MASNA - Marine Aquarium Societies of North America
MD - Marine Depot, mail order company
MH - Metal halide light
MJ - Maxijet, powerhead manufacturer
MM - Miracle Mud, method of aquarium filtration
MO - Mail order
MPT or FNPT - Male National Pipe Taper, fitting with external threads
NC - Nano Cube
NC - Normally closed (solenoid)
NO - Normal output fluorescent light
NO - Normally open (solenoid)
NPT - National Pipe Taper
NPS - National Pipe Straight
NSW - Natural seawater
OD - Outside diameter
OM - Oceans Motion wavemaker
ORP - Oxidation Reduction (ReDox) potential
PA - Premium Aquatics, mail order company
PAR - Photosynthetically Active Radiation

PAS - Photosynthetically Active Spectrum
PC - Power compact fluorescent light
PH - Powerhead, water pump
PM - Private message
pods - any small crustaceans used for detrius control and food for aquarium inhabitants (i.e. copepods)
PPE - Purple People Eater (zoanthids)
PPM - Parts Per Million (also 1ppm= 1mg/L)

PUR - Photosynthetically Useful Radiation
PVC - Poly vinyl chloride, used for piping / plumbing
RBTA - Red bubble tip anemone
RC - Reef Central, aquarium bulletin board supreme
RC - Reef Crystals, brand of aquarium salt
RDO - Reefs.org ("reefs-dot-org"), aquarium bulletin board
RK - Reef Keeping, on-line aquarium magazine
RK2 - Reef Keeper 2 Controller
RO - Reverse osmosis, type of water purification
RO/DI - Reverse osmosis, followed by deionisation, type of water purification
RR - Reef ready, aquaria with pre-drilled holes and overflows
RTN - Rapid tissue necrosis, protozoal infection of corals; can be rapidly fatal if not treated
SG - Specific gravity
SLIP - PVC fitting without any threads that is intended to be cemented/glued
SPS - Small polyped Scleractinian (stoney) coral
SS - Sea Swirl
STN - Slow tissue necrosis
SW - Saltwater / seawater
TC- Turbo Calcium
TBS - Tampa Bay Saltwater, Mail Order Company
TDS - Total Dissolved Solids (measured by conductivity; a gauge of water "purity")
TFC - Thin film composite, type of RO membrane
TMPCC- Tropic Marin Pro Coral Cure
TPI - Threads Per Inch
TRT - The Reef Tank, aquarium bulletin board (Also a former Northern Virgina Reef Store)
TWP - Tap Water Purifier from Aquatic Pharmaceuticals
UGF - Undergravel filter
UV - Ultra violet light
VHO - Very high output fluorescent light
VGV - Vodka, Glucose, Vinegar (dosing)
WAMAS - Washington Area Marine Aquarist Society (Us!)
W/D - Wet-dry (a method of aquarium filtration)
WD - Wet-dry (a method of aquarium filtration)
WQ - Water Quality
WPG - Watts Per Gallon
WYSIWYG - What you see is what you get
YMMV - Your Mileage May Vary
YRMV - Your results may vary

Edited December 7, 2017 by Origami
updated list