Wow. All I can think to say is;
A
ABK - African Brown Knife
Afaro/afro - african arowana
aro - arowana
ARTC - asian Red Tail Cat
AST - alligator snapping turtle
AT - American Tiger
ATF - African tiger fish
ATP - African Tiger Pike
AUL - Australian lungfish
Aro/Arowana Related:
BBXB - BLUE BASE CROSSBACK
BMBXB - BUKIT MERAH BLUE CROSSBACK
EBXB - ELECTRIC BLUE CROSSBACK
GXB - GOLDEN CROSSBACK
HBRTG - HIGH-BACKED RED TAILED GOLDEN
JAR - JARDINI AROWANA
Lei - Leichardti
RTG - RED TAILED GOLDEN
SHVFSR - spoon head violet fusion super red
SR - SUPER RED (INCLUDES CR-CHILI RED , BR-BLOOD RED AND VFSR-VIOLET FUSION SUPER RED, ER-EMPEROR RED)
VFSR - violet fusion super red
XB - CROSSBACK (refers to the sixth level scales which cross aros back)
YT - YELLOW TAIL
B
BA - blue acara
BATF - Brevis African Tiger Fish
BB - bare bottom; bumblebee; Black Belt cichlids; Beneficial Bacteria
BBS - baby brine shrimp
bgk - black ghost knife
BN - bushy-nose pleco (Ancistris)
BP - blood parrot
BW - blood worms
Betta-Related:
BF - butterfly
Bwe - blackwater extract
CT - crowntail
DT - doubletail
HM - halfmoon
HR - half round
IAL - indian almond leaves
KCT - king crowntail
MB - marble (a color)
MG - mustard gas
PK - plakat
RB - royal blue
RT - roundtail
ST - spadetail
VT - veiltail
C
CC - Crushed Coral
ck - clown knife
cl - clown loach
Con - convict cichlid
cong/congi - polypterus endlicheri congicus
cyno/cyano - herichthys cyanoguttatus/texas cichlid; Cyanobacteria
D
Dat - any of the Datnoid/Tigerfish
DE - Drop Eye
Del- Polypterus delhezi
DIY - Do It Yourself
DO - dissolved oxygen
DOC - dissolved organic compound
E
EBH - electric blue hap
EBJD - electric blue jack dempsey
EL - egg-laying
endi (endli) - Polypterus endlicheri endlicheri
F
F0 - Wild caught
F1 - First brood from Wild caught parents
FATF - Forskali African Tiger Fish
FBF - fluidized bed filter
FD - freeze-dried
FF - fei feng (flagtail prochilodus)
FH - flowerhorn
FK/fk - Fish Keeper/fish keeping
FM - firemouth
FOWLR - fish only, with live rock (SW aquarium)
FPT- female pipe threads
front - Cyphotilapia frontosa
FTS - full tank shot
FRT - Fly River turtle
FW - freshwater
FlowerHorn-Related:
BCD - Blue Comet Dragon
BD - Blue Dragon
BFD - Blue Faced Dragon
BP - Blood Parrot Hybrid
Darmo- High Quality KKP
DBD - Diamond Blue Dragon
EM - Eastern Maiden
GD - Golden Dragon
GFF - Golden Fire Face
HBK - Hell Boy Kamfa
JH - Jin Hua
JK - Jing Kang
OGD - Oriental Green Dragon
OK - Orange Kamfa
OP - Oriental Phoenix
POTO - Pearl Of the Orient
KB - King Baccara
KKP - King Kong Parrot
Mammon - High Quality KKP
RBK - Rainbow King
RC - Red Crystal
RD - Red Dragon or Rainbow Dragon
RG - Red General
RK - Red Kamfa
RM - Red Monkey
RP - Red Phoenix
RPD - Red Pearl Dragon
RS - Red Shock
SDK - Super Dragon King
SP - Super Pendian
SRS - Super Red Shock
TD - Thunder Bolt
TK - Tan King
ZZML - Zhen Zhou Malau
ZZ - Zhen Zhou
G
GATF - Goliath Af. Tiger Fish
GBR - German Blue Ram
Geo - for all Geophagus
gH - general hardness
gibb - Cyphotilapia gibberosa
gibby - sailfin plec (Glyptoperichthys gibbiceps)
gph/gpm - gallons per hour/gallons per minute
GN - gold nugget pleco
GS - Gold Saum
gsp - green spotted puffer / green star polyps
GT - green terror
H
HDME - Hawaiian Dragon Moray Eel
HITH - hole in the head (disease)
HLLE - Head Lateral Line Erosion
HOB (HOT) - hang on back (tank) filter
HRP - Honduran Red Point
I
Ich - Ichthyophthirius (white spot disease)
ID - Inside Diameter
IT - Indonesian Tiger
J
jag - jaguar (cichlid, catfish, etc.)
JB - jelly bean parrot
JD - jack dempsey
JDM - Japanese domestic market
JK - jin kang (flowerhorn)
L
Lap - Polypterus lapradei
LB - live-bearing; pound
LF - longfin
lfs - local fish store
LH - Luo Han (flowerhorn)
LLE - lateral line erosion
LMB - largemouth bass
lps - local pet shop
LR - live rock
LS - live sand
LSN - Lima Shovelnose
M
mags - motaguense
mala - Hoplias malabaricus
mannies - managuense/jaguar cichlid
Metro - metronidazole (flagyl)
moke - polypterus mokelembembe
Mota - Motaguense
MPT - male pipe threads
mts - malaysian trumpet snails
multi's - either Synodontis multipunctatus or Neolamprologus multifasciatus
N
Natt - Pygocentrus Nattereri (Red Bellied Piranha)
NGT - New Guinea tiger
Nic - Nicaraguense
NTT - Northern Thailand Tiger
O
OD - outside diameter
O - oscar
OF - overflow
P
P (Ps) - piranha(s)
PB/(PBass) - peacock bass
PBB - Polypterus bichir bichir
pfs - pool filter sand
pH - percentage of hydrogen
plec/pleco - plecostomus and members of Family: Loricariidae
PLJ - Protruding Lower Jaw
PNT - pig-nose turtle (aka FRT)
poly - any species of the genus Polypterus
Pygo - Any piranha of the genus Pygocentrus
Q
QT - quarantine/quarantine tank
R
rbp - red-belly piranha (or pacu)
RCK - royal clown knife
RD - red devil
RES - Red-Eared Slider
retro - Polypterus retropinnis
rhom - Serrasalmus rhombeus
RO - reverse osmosis
RT - red terror, red tiger (Motaguense), red texas
rtc - redtail catfish
RTG - redtail gold (aro)
RTGG - redtail giant gourami
RTM - Red tiger Motaguense
S
SA - silver arowana
SA/CA - south american/central american (cichlids)
SAE - siamese algae eater
sal - Cichlasoma salvini
SAL - south american lungfish
SB - short body
SBD - Swim Bladder Disorder
SD - Silver Dollar
Sen - Polypterus senegalus senegalus
Serra - Any piranha of the genus Serrasalmus
Sev - Severums
SF - slip
SFME - Snow Flake Moray Eel
SG - specific gravity
SH - snakehead
SHVFSR = spoon head violet fusion super red
SMB - smallmouth bass
Spilo - Serrasalmus Spilopleura
SRS - super red shock flowerhorn
SRT- Super red texas
ST - Siamese Tiger
Freshwater Stingray-Related:
BD - Black Diamond
Hen - henlei
Leo - leopoldi
MM - Marbled Motoro
Orb - orbignyi
PDR - Polka Dot Ray
SW - saltwater
Syn - Paratheraps synspilum or Synodontis
T
TATF - Tanzanaie African Tiger Fish
tem - Cichla temensis
Tig - tigrinus catfish
TSN - tiger shovelnose catfish
TSNxRTC - hybrid catfish
tx/tex - texas cichlid
U
UGF - undergravel filter
UGJ - undergravel jets
Umbi - umbriferus (Caquetaia, Nandopsis, etc.)
uro - Cichlasoma uropthalmus (false red terror)
UV - ultraviolet
V
VATF- Vittatus African Tiger Fish
VFSR - Violet Fusion Super Red (aro)
W
WAL - west african lungfish
W/C {G/W} - water change {gravel wash} / Wild-Caught
W/D - wet/dry filter
WTB - Want To Buy
WYSIWYG - What You See Is What You Get
X
XB - crossback
...and that's all I have to say about that.