RO bEfore and after

[mark]

RO will help but not to forget there's lots of great tanks on tap water.

Also, say if your algae is due over feeding and you continue, RO won't make it disappear.

[lorenz0]

what type of algae do you have a problem with? imo doing large water changes aren't always the solution

[Chase31]

i didnt say to do a large one to fix the algae just a large one to drop your tds to alot lower