If you are a Phyto feeder and are looking for a new product to try, I highly recommend you check out Reed Mariculture. http://www.phyto-feast.com/ I have been using their Coral & Clam Diet and I have having spectacular results. I have always had trouble keeping Xenia. They would look great for about 6 months and then start to wither away. The same thing was happening again and I asked Randy Reed about it at this years MACNA in Boston. He said his Phyto-Feast product should fix my problem and it sure did. The Xenia is starting to make a come back in a big way.
They do sell to end users, but I worked with one of our LFS to start carrying the Phyto-Feast product and it is selling well for them.