A

1. A – Amp

2. AA - Amino Acid

3. ABT - Atlantic blue tang

4. AC - Activated Carbon (a chemical filtration medium) or Alternating Current.

5. Acan Lord – Acanthastrea

6. Acro – Acropora coral

7. AEFW – Acropora-eating Flatworms

8. AGA – All-Glass Aquarium (a brand of aquariums).

9. AIO – All-in-One, a prebuilt system that includes pump and filtration.

10. Alk – Alkalinity, a measure of the buffering capacity of (salt)water.

11. ATO – Auto Top-Off, a system that automatically adds water lost during evaporation.

12. ATS – Algae Turf Scrubber, a method of removing undesirable nutrients.


B

1. BA – Bubble algae

2. B2B – Business to business

3. B2C – Business to consumer

4. BB – Bare Bottom, a tank without sand or other substrate.

5. BRB – Be right back

6. Blasto – Blastomussa

7. BOD – Biological Oxygen Demand. Amount of dissolved oxygen needed in the water for your system.

8. BPS – Bubbles Per Second. A term often used for freshwater aquariums to describe CO2 entering a planted tank.

9. BRS - Bulk Reef Supply (online store)

10. BTA – Bubble-Tip Anemone

11. BTU – British Thermal Unit

12. BTW – By the way

C

1. Ca – Calcium

2. CBB – Copperband Butterflyfish

3. CC – Counter Current (a type of protein skimmer) or Crushed Coral

4. CF – Canister Filter

5. CFL – Compact Fluorescent Lamp (or Light)

6. CL – Closed Loop

7. CO2 – Carbon dioxide

8. Cu – Copper

9. CUC – Clean-up Crew

10. CW – Cold Water

11. CWC – Continuous Water Change

12. Cyano – Cyanobacteria


D

1. DC – Direct Current

2. DD – Downdraft, a type of protein skimmer.

3. DE – Double Ended

4. DFS – Drs. Foster and Smith (an online store in the US)

5. DI – Deionization, a type of water purification.

6. DI water – Deionized Water

7. DIY – Do It Yourself

8. dKH – Degrees of Carbonate Hardness, a measurement of Alkalinity

9. DO – Dissolved Oxygen

10. DOC – Dissolved Organic Carbon or Compound

11. DOM – Dissolved Organic Matter

12. DSB – Deep Sand Bed

13. DT – Display Tank (your main tank)


E

1. ETA - Estimated Time of Arrival


F

1. FAQ – Frequently Asked Questions

2. FO – Fish Only

3. FOWLR – Fish Only With Live Rock

4. Frag - Fragment (a small part of a coral colony removed in order to propagate it and grow another colony to share or sell or trade or place it elsewhere)

5. FTS – Full Tank Shot

6. FTW – For the win

7. Fuge – Refugium (a separate tank or part of a tank or sump devoted to culturing marine algae or copepods)

8. FW – Freshwater or Flatworm

9. FWE – Flatworm eXit by Salifert

10. FWIW – For what it’s worth


G

1. G – Gallon (example, 60g)

2. GAC – Granular Activated Carbon

3. GBTA – Green Bubble-Tip Anemone

4. GFCI – Ground Fault Circuit Interrupter

5. GFI – Ground Fault Interrupter

6. GFO – Granular Ferric Oxide (a phosphate remover).

7. GH – General Hardness

8. GHA – Green Hair Algae

9. GPD – Gallons per Day

10. GPH – Gallons per Hour

11. GSM – Gold Stripe Maroon Clownfish

12. GSP – Green Star Polyps


H

1. HA – Hair Algae

2. HAS – High Speed Aeration, a type of protein skimmer.

3. HID – High Intensity Discharge (lighting).

4. HO – High Output (fluorescent lighting).

5. HOB – Hang-On-Back (usually refers to a filter or protein skimmer).

6. HOT – Hang-On-Tank

7. HT – Hospital Tank

8. HTH – (I) hope that helps

9. HQI – Hardest Question Is or Mercury (Hg) Quartz Iodide


I

1. IDK – I don’t know

2. IME – In my experience

3. IMHO – In my humble opinion

4. IMO – In my opinion

5. IO – Instant Ocean (a brand of aquarium salt)

6. IR – Infrared

7. IW – In Wall


K

1. K – Kelvin

2. KALK – Kalkwasser, German for Calcium hydroxide solution or limewater, a common reef aquarium additive for calcium and reef building.

3. KISS – Keep it simple, stupid.

4. KMNO4 – Potassium permanganate, a chemical used for disinfection of equipment and for fish baths and swabs. Will kill snails, snail eggs and some parasites depending on strength of solution.

5. kWh – Kilowatt Hour


L

1. L – Liter

2. LED – Light Emitting Diodes

3. LFS – Local Fish Store (or pet store selling fish and fish supplies)

4. LHS – Local Hardware Store

5. LMK – Let me know

6. Lobo – Lobophyllia

7. LOL – Laugh out loud

8. LPD/H/M – Liters per Day/Hour/Minute

9. LPS – Large Polyp Stony coral

10. LR – Live Rock

11. LS – Live Sand

12. LTA – Long Tentacle Anemone

13. LX or Lux – Amount of lighting (one lumen) per square meter


M

1. MACNA - Marine Aquaria Conference of North America

2. MASNA - Marine Aquarium Societies of North America

3. Mag – Magnesium

4. mEq/L - Milliequivalents per Liter (a milliequivalent is 1/1000 of an equivalent), a measure of alkalinity.

5. Mg – Milligram or Magnesium

6. MG/L – Milligrams per Liter

7. MH – Metal Halide (Light)

8. Milli - Acropora Millipora

9. MJ – Maxijet

10. MM – Miracle Mud, a type of substrate usually for freshwater aquariums

11. MTS – Multiple Tank Syndrome. When you can’t stop adding more tanks and more fish ad nauseum. Very serious affliction with high degree of contagion among reef aquarists.

N

1. Nems- anemones

2. NH3 – Ammonia

3. NH4 – Ammonium

4. nm – Nanometer, a measurement often used in lighting terminology

5. NNR – Natural Nitrate Reduction

6. NO – Normal Output (fluorescent light)

7. NO2 – Nitrite

8. NO3 – Nitrate

9. NPS – Non Photosynthetic

10. NRN – No reply necessary

11. NSL – Natural Sunlight

12. NSW – Natural Seawater

13. NTS – New Tank Syndrome. May be caused by lack of beneficial bacteria and/or increasing bio-load too fast, and/or overzealous cleaning of equipment.


O

1. O2 – Oxygen

2. ORA – Oceans, Reefs, and Aquariums

3. ORP – Oxidative Redox Potential


P

1. PAR - Photosynthetically Active Radiation

2. PAS – Photosynthetic Action Spectrum

3. PO4 – Phosphate

4. PAR - Photosynthetic Active Radiation

5. PBT - Powder Blue Tang

6. PC - Power Compact

7. pH – Measure of Concentration of Hydrogen Ions. Seven (7) is neutral. Less than (<) 7 is acidic and greater than (>) 7 is basic.

8. PH - Powerhead

9. PM – Private message (through a forum)

10. POTM - Picture of the month

11. PP - per polyp or Potassium permanganate (see KMNO4)

12. PPM - Parts Per Million

13. PPT - Parts Per Thousand

14. PS – Protein Skimmer

15. PVC - Poly Vinyl Chloride

Q

1. QT - Quarantine Tank, used before introducing new livestock to display tank.


R

1. R2R – Reef2Reef.com

2. RBTA - Rose Bubble-Tip Anemone

3. RC - Reef Crystals

4. RDSB - Remote Deep Sand Bed

5. Rics – Ricordia

6. RO – Reverse Osmosis, a type of water purification routinely used for saltwater aquariums.

7. RO Water - Reverse Osmosis Water

8. RODI or RO/DI- Reverse Osmosis and Deionization (unit or water that has passed through this unit.)

9. ROTFLMBO - Roll on the floor laughing my butt off.

10. RP – Return Pump

11. RR - Reef Ready, aquaria with one or more overflows and predrilled holes for plumbing to a sump.

12. RTN - Rapid Tissue Necrosis

13. RUGF – Reverse Flow Undergravel Filter


S

1. SAL - Salinity

2. SE – Single Ended

3. SG – Specific Gravity. A ratio of density.

4. SHO/T5 – Super High Output Fluorescent Light, equivalent to power compact fluorescents.

5. Shrooms – Mushroom Coral

6. SLR – Single Light Reflector

7. SPS – Small Polyp Stony Coral

8. SSB – Shallow Sand Bed

9. STN – Slow Tissue Necrosis

10. SW – Saltwater or Sea Water


T

1. T5 – a type of fluorescent lighting

2. TDS – Total Dissolved Solids

3. TFC – Thin Film Composite, a type of RO membrane.

4. TIA – Thanks in Advance

5. TL;DR – Too long didn’t read.

6. TLTR – Too long to read

7. TM - Temperature

8. TMI – Too Much Information

9. TOTM – Tank of the Month

10. Trachy – Trachyphyllia


U

1. UGF – Under-Gravel Filter

2. ULNS – Ultra-Low Nutrient System

3. UV – Ultraviolet, a type of light that is shorter wavelength than visible light (but longer than X-rays), sometimes broken down into UVA, UVB, and UVC.


V

1. V – Volt

2. VHO – Very High Output (fluorescent light)


W

1. W – Watts

2. WC – Water Change

3. WD – Wet-Dry, a type of filtration.

4. Wellso – Wellsophyllia

5. WYSIWYG – What you see is what you get


Y

1. YGPM – You’ve got a private message

2. YOLO – You only live once.

3. YWG – Yellow Watchman Goby


Z

1. Z&P – Zoanthids and Palythoa

2. Zoa – Zoanthid

References:

· Source: https://www.reef2reef.com/threads/lingo-commonly-used-acronyms-0.57652/

· Source: http://www.3reef.com/threads/common-acronyms-and-abbreviations.54351/

· Source: https://aquarium-digest.com/tag/aquarium-abbreviations/

· Source: https://www.thereeftank.com/forums/f362/acronyms-frequently-used-list-134531.html

· Source: https://www.fishlore.com/aquariumfishforum/threads/saltwater-acronyms.15147/