Macroalgae advice please

[Lonestar]

We are replacing our bio ball sump with a nice refugium. It's been up and running for a few days now with LS & LR rubble in the fuge chamber. Our question is, can chaeto or other macroalgae be placed in the refugium at this time, or should the fuge run for a few more days / weeks before stocking?

 

[Blurp]

The question is are there any nutrients to feed them? Yes, place them asap, otherwise no need for them...

 

[Lonestar]

Display tank has an over abundance of nutrients..........