Algae growth is a common problem that many aquarium hobbyists have to cope with at some point in time.
You do not need to be alarmed by the presence of a moderate amount in your tank as it is usually not harmful. Moderate growth of it indicates your aquarium is able to support and sustain life on its own and this is a positive sign. You can also buy algae removal online via https://chemron.com.au/shop/sanitising/algae-died-b/.
You need to monitor the situation to ensure it does not lead to uncontrolled and excessive growth. Algae proliferation is not only unpleasant to the eyes; it also poses a health threat to plants and fish. When it is present in large quantities, they compete with fish for oxygen.
There are various types of algae some of which are more detrimental to your fish tank ecological system when they are allowed to proliferate uncontrollably. Some of these nasty algae produce high levels of toxins that in turn affect other organisms in the aquarium.
Brown algae are also known as gravel or silica algae. This species is commonly found in new tanks. It coats tank surfaces in layers and is easily wiped off. One effective and quick way to remove coatings from the substrate is by vacuuming the gravel with a siphon.