Suggested tags
daphnia
water flea
flea
crustacean
micro
microscopic
protist
protists
protozoan
animalcule
microscope
internal organs
beating heart
aquatic
freshwater
microscopy
photo microscopy
photomicroscopy
germs
bugs
creepy
swamps
fleas
water
water fleas
waterfleas
protozoa
filter feeder
brightfield
bright field
plankton
planktonic