Have fun with this one

[~reefchik~]

Question, I mean 

All my algaes are disappearing!???!  Including the macro in my sump. 
I thought Tom must have harvested some out of the sump but he hasn't.

The only thing I have going on now is lots and lots of coralline in the display tank.  That figures since my calcium levels were a bit on the high side last time I checked.

I would imagine within another month or so, there may be no algae, macro or otherwise, left in the display tank at all.  What an amazing concept for me 

I guess this is what we want to happen, right?

[atreis]

Could be good, could be bad....  It could mean your nutrients are so low that you can't support the growth of algae, which is generally considered a good thing for corals.  It's also possible you're not low on nitrates, but are low on iron which the algae needs.

[~reefchik~]

The only supplement I'm using is Kent Essential Elements, which does contain iron. 
I'm hoping it's a good thing!  Except....how to maintain a refugium if macroalgaes don't flourish? 

My ball of chaeto still looks good and it's gotten larger since the tank was set up.