The major downfall of having brown algae accumulate in your aquarium is that it can appear unsightly.
Brown algae can also appear fast and without warning, alarming some new aquarists. Especially those who do not like the idea of a “bacteria build-up”, which is what brown algae essentially is,
The thought of having brown algae take over a tank can be unbearable. It is all up to personal preference on how you like your aquascape to look.
Brown algae is a real cause for concern for those who have a planted aquarium.
While brown algae growing on aquarium plants is not harmful immediately if not taken care of the build-up of thick brown algae can block plants from photosynthesizing properly.
If you do not want to wait for the problem to clear up on its own or fear it will take too long,
A soft sponge can be used to remove brown algae from aquarium plants. Brown algae are generally easy to remove from any surface, as long as it is not too porous.