The growth of some algae in the aquarium can be considered quite normal and useful for bacterial culture in your aquarium.
However, if you have very steady growth in your tank, you can take steps to get rid of the algae before they harm your tank and fish. You can also browse chemron.com.au/shop/sanitising/algae-died-b/ to know more about algae removal.
It is important to understand that many different types of algae can grow in your aquarium and some of them will benefit vegetarian fish and all beneficial invertebrates that may also live in your aquarium.
Green, hair and water sports are common in aquariums, with the former being the most common.
A small number of algae may not bother you too much, but a larger amount can affect your plant's ability to photosynthesize through leaf growth.
Aesthetic issues can also arise when there is a lot of algae growing on the glass, and you can try to get rid of the algae by trying the following:
Simply rub the algae culture out of the jar and rock where it grew. This will break it down and cause it to die, especially if you remove the algae from the tank by removing it directly from the water.
Have a tank that is planted a lot. This has two benefits, firstly it keeps the nitrogen cycle going. The second is that you automatically get rid of algae by using its nutrients.
Keep your aquarium well-filtered, consider additional water treatment and planting if algae growth is sporadic.