Referred to as a microalgae, brown or golden algae is actually not an algae at all, but diatoms. What you are actually seeing in your tank are diatom skeletons, all linked together. It can appear as a simple dusting on the tank walls and substrate surfaces, or it can turn into a massive growth that covers just about everything in the tank.
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 Brown Diatom Algae |  View of the Left Side Diatom Algae |  Right Side View of Brown Diatom Algae |  Brown Diatom Algae |
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