In the past I have advised folks to use Lugols as a mean to get good growth of Xenia. I have never used Lugols religiously but have added it occasionally, perhaps once a week or every other week.

I recently ran across this article by Boreman that discusses his bad experiences with using Lugols and I thought I would share with you.

http://www.marshreef.com/modules.php...le&artid=3

Gary