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What is this pink mass that develops on the tank walls?

What is this pink mass that develops on the tank walls?
What is this pink mass that develops on the tank walls?

I work at a hatchery raising oysters and clams. We’ve been noticing these pink patches on the sides of the tanks when we clean them. Does anyone know what this is?

More info:

We pump saltwater in from the harbor and use it in the tanks. We’re within NYS DEC zone 1.

submitted by /u/hotel-room-sofa
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Tagged with

#pink mass
#hatchery
#oysters
#clams
#tank walls
#shellfish
#saltwater
#marinebiology
#pink patches
#NYS DEC
#zone 1
#biofouling
#aquaculture
#tank cleaning
#harbor
#marine environment
#benthic organisms
#algae
#bacteria
#biofilm