英文關鍵字
algae
animal
aqua
aquatic
biotope
clear
closeup
cobitis
current
decorative
echinodorus
ecology
europe
fauna
fin
fish
fishkeeping
flow
free
freshwater
friendly
funny
gravel
grey
instinct
juvenile
loach
local
macro
native
natural
nature
ornamental
plant
protection
river
sand
space
spined
spread
stream
sword
taenia
tank
temperate
threat
underwater
vegetation
water
weed
wide
wild