<a href=showthread.php?s=&postid=12991828#post12991828 target=_blank>Originally posted</a> by Stuart60611
There is no problem except one caveat. If your phosphate and nitrate levels become too low your macro algae in the refugium may die. The die off of the macro algae can lead to nutrient problems. Therefore, just watch your macro algae to be sure that it is not dying off. Otherwise, you are good to go.