hi i like ur posts... and i need a help from u i have set up a new planted tank about a month old. dim(L5'6"xB8"xH18") i have changed water 3 times.. to get rid of the brown algae... currently i face this problem..(i have attached 2 fotos of it)kindly help me to find out the problem
I can't see any pictures but it's normally fungal, ottocinclus and shrimp will eat it. Your brown algae sounds like diatoms they're just one of those things with some scapes, you can avoid them by using a mature filter on a new tank generally speaking. They're rare in being one of the only algaes that are easiest cleared up by adding ottos, I wouldn't recommend this course of action for any other algae.
Brown algae normally goes away in a month or two. Give it some time and it will go away naturally. Clear your fine media floss regularly. -John N.