| AC |
|
Activated carbon, chemical filtration media / alternating current |
| AFM |
|
Aquarium Fish Monthly, magazine |
| Alk |
|
Alkalinity, measure of buffering capacity of water |
| ATS |
|
Algae turf scrubber, reef setup technique |
| BOD |
|
Biological oxygen demand |
| Ca |
|
Calcium |
| CaCl2 |
|
Calcium chloride |
| CaCO3 |
|
Calcium carbonate |
| Ca(OH)2 |
|
Calcium hydroxide |
| CC |
|
Counter current, type of protein skimmer |
| Cl |
|
Chlorine |
| CO2 |
|
Carbon dioxide |
| CO3 |
|
Carbonate |
| CTA |
|
Cellulose triacetate, type of RO membrane |
| Cu |
|
Copper |
| Cyano |
|
Cyanobacteria |
| DC |
|
Direct current |
| DD |
|
Downdraft, type of protein skimmer |
| DI |
|
Deionisation, type of water purification |
| DIY |
|
Do it yourself |
| dKH |
|
Degrees of carbonate hardness, measure of alkalinity |
| DO |
|
Dissolve oxygen |
| DOC |
|
Dissolved organic carbon |
| FAMA |
|
Freshwater and Marine Aquaria, magazine |
| Fe |
|
Iron |
| FFE |
|
Flying Fish Express, Mail Order Company |
| FO |
|
Fish only |
| FW |
|
Freshwater |
| GBR |
|
Great Barrier Reef |
| GPH |
|
Gallons per hour |
| HCO3 |
|
Hydrogen carbonate |
| HO |
|
High output fluorescent light |
| I |
|
Iodide |
| I2 |
|
Iodine |
| IO3 |
|
Iodate |
| IR |
|
Infrared |
| Kalk |
|
Kalkwasser, German for calcium hydroxide solution or limewater |
| KI |
|
Potassium iodide |
| LFS |
|
Local fish store |
| LHS |
|
Local hardware store |
| LPS |
|
Large polyped Scleractinian (stoney) coral |
| LR |
|
Live rock |
| MACNA |
|
Marine Aquaria Conference of North America, held annually |
| MEQ/L |
|
Milli-equivalents per litre, measure of alkalinity |
| Mg |
|
Magnesium |
| MH |
|
Metal halide light |
| MO |
|
Mail order |
| Na |
|
Sodium |
| NaCO3 |
|
Sodium carbonate |
| NaOH |
|
Sodium hydroxide |
| NH3 |
|
Ammonia |
| NH4 |
|
Ammonium |
| NO |
|
Normal output fluorescent light |
| NO2 |
|
Nitrite |
| NO3 |
|
Nitrate |
| NSW |
|
Natural seawater |
| O2 |
|
Oxygen |
| ORP |
|
Oxidative redox potential |
| PC |
|
Power compact fluorescent light |
| pH |
|
A measure of the acidity or alkalinity of a solution |
| PH |
|
Powerhead, water pump |
| PO4 |
|
Phosphate |
| PPM |
|
Parts per million, equivalent to mg/l (milligrams per litre) |
| PVC |
|
Poly vinyl chloride, used for piping / plumbing |
| RO |
|
Reverse osmosis, type of water purification |
| RO/DI |
|
Reverse osmosis, followed by deionisation, type of water purification |
| SG |
|
Specific gravity |
| Si |
|
Silicon |
| SiO2 |
|
Silicon dioxide |
| SPS |
|
Small polyped Scleractinian (stoney) coral |
| Sr |
|
Strontium |
| SW |
|
Saltwater / seawater |
| TBS |
|
Tampa Bay Saltwater, Mail Order Company |
| TFC |
|
Thin film composite, type of RO membrane |
| TWP |
|
Tap Water Purifier from Aquatic Pharmaceuticals |
| UGF |
|
Undergravel filter |
| UV |
|
Ultra violet light |
| VHO |
|
Very high output fluorescent light |
