So I just started my tank around 2 weeks I have a betta some tetras and a hill-shore loache and I bought some tank plants along with it and all of a sudden after two weeks my whole tank is covered in brown algae overnight and I have no idea how to clean and/or reduce it so if anyone has any tips pls lmk also I’m not 100% sure how to do a 30-50% water change if someone could help explain that too it would be amazing. I know I should have done more research but now I’m panicking a bit also for the water change i know you just change the water but how should I clean the gravel is my main concern. So again any help would be very appreciated thank youu!