Dosing Peroxide Question

[Reefen]

Is dosing peroxide in the tank safe if you have a refugium with macro in it?

 

[lilgrounchuck]

Is this to combat algae? It didn’t impact my chaeto when I did it, but I didn’t dump it into the water. I turned off all flow and used a syringe to squirt it right on the GHA I was trying to kill. It killed the GHA but didn’t impact anything else.