Hey
@wan there Are various things you can do
carbon dosing - I use plain white vinegar. You need to have a skimmer to carbon dose.
a refugium
a media block like marine pure or brightwell brick
depending on your p04 levels some sort of phosphate remover such as granular ferric oxide, rowaphos,
or some people dose lanthanum chloride. example would be phosphate-e by brightwell.
do your research on all of them and understand the risks to your live stock.
You can employ a combination of all these.
you sound fairly new, so I will also include this advice.
don’t try sps until your system matures. A good rule of thumb I’ve read here is wait until you have good coralline algae growth. or Roughly 6-8 months.
during This time learn to maintain stability of all your parameters.