My macro just died!

[Millepora_Maniac]

HI Guys,
I had a book by Anthony Calfo, who is I guess some kind of reef Guru, and in there he warns about the nutrient levels getting too low and the macro algae going A sexual, at that point it realeases all of the nutrients that it has pulled from the water back into the tank at once. Which is not good considering many of us have used macroalgae for nutrient export. test your water for nitrates and phosphates and maybe do a nice water change to be sure. Good luck.

[danny zubot]

Judging by what I've found in my skimmer cup since this event, I'd say that a whole lot of nutrients were let back into my system. My only hope is that what small bits that were left will eventually re-grow.

Thank you everyone for your help on this. I've learned something new today!

[Navarchus]

Do you add some iron supplement? If not you might want to consider using one such as Kent Marine Iron & Manganese.
If you have corals it will also help with green color! Don over doss a good indicator of overdosing is when your acro, yellow Blue etc are getting greenish halo.