Gallionella ferruginea [braid-like] in red floc from neutral
water
Leptothrix cholodnii [sausage-like] in red floc from neutral
water
Leptothrix discophora holdfasts [doughnut-like], which are
parts of the bacteria that attach to rocks or microscope slides, like the
fresh rounded ones on this microscope slide left in neutral water riffle
Leptothrix discophora [rods] on oil-like film from neutral
water
Leptothrix discophora dehydrated holdfasts [doughnut-like]
within hole on manganese-coated microscope slide in neutral water riffle
Leptothrix ochracea [drinking-straw like] in red floc from
neutral water
Siderocapsa sp. [globular] on fecal pellet in red floc from
neutral water
Siderococcus sp. [dot-like] in red floc from slightly salty,
brackish water
Siderocystis sp. [agglomerations] on dead alga in red floc
from neutral water
Toxothrix trichogenes [ladder-like] in red floc from neutral
water
Thiobacillus-type [rods] in yellow floc from acid water
Leptothrix-type? [rods] on oil-like film from acid water
Effective Bacteria Control: