dragonfly nymphdiving beetle diving beetle larvae
mayfly nymphwater boatman
water cricketwater scorpion whirlygig beetle
Rotifers Waterbear (tardigrade)
cyclops water shrimpwater flea (Daphnia)
Volvox (green)Haematococcus (red colored)dinoflagellate (red, green, some multicolored)
Desmids (green)Spirogyra (green)
Anything green and stringy can be classified as an algae!!!