ive got this brown filamentous algae growing in my tank. I just added a closed lo0p on my tank, so flow is pretty decent.

my rodi filter needed some filter changes, so I just to0k care of that and did 15 gallon water change last week.

I know the ammonia and nitrates were a little high, but I think thats b/c of my old filters.

So, recommendations ... keep doing water changes and manually remove as much as I can? or what?

any help is appreciated