It's been a few...years since I've been actively following the scrubber anomaly. I just picked up a "Surf 2" (Which is growing very nice and green on its second week plugged in; nice work SM!). Anyway, some personal crap came up but I am back to give SM a hard time and generally help peeps with their tanks.
So, are we still supplementing Iron? I know in most all NSW environments Iron is a limiting factor (http://link.springer.com/chapter/10....762-2_8#page-1), and there have even been attempts at CO2 sequestration through Iron seeding the ocean (http://imedea.uib-csic.es/master/cam...%20%202001.pdf), the article disparages the idea but admits its feasibility.
So, thoughts?