Bio balls

[Blakers]

If I were to add bio balls to my filter, would it help reduce nitrates?

 

[Crabs]

It is the general opinion that they actually create nitrates. Most reefers remove their bioballs and replace them with LR rubble

 

[mariuszekca]

I have 2 tanks. 8g jbj nano and 50g bowfront corner. In nano i have 2 sponges, chemipure, Ceramic rings and few bioballs. Biger tank i sump less and i have rena xp3 cannister filter. As a media i have sponges, sock with carbon, Live rock rubble, ceramic rings, bioballs mixed with zen stars ( whatever it's called that came with filter) and floss. Both tanks have nitrates at 0 all the time. I just do weekly water changes and clean sponges every time. That's it. Now put some gfo at both tanks to lover po4.
So never seen bioballs affecting my nitrates. I think that no matter what filtration system and media you run, if you don't do a basic maintenance your parameters never gonna be good. 1 hour of my time in a week doesn't really kill me and actualy I enjoy cleaning my tanks.
That's my 5 cents!!!