balagan;66722 wrote: Eric Borneman has a pretty good article in reefkeeping.org about phytoplankton...granted it's from 2002. I think you will find a lot of debate though on the benefit. Some scientists will talk about finding phytoplankton in the guts of SPS...others will say it's just a bi-product of natural processes and never really is used (which is why it's in their gut, undigested).
I think I've also read that it stimulates fish to eat better.
http://www.reefkeeping.com/issues/2002-10/eb/index.php">http://www.reefkeeping.com/issues/2002-10/eb/index.php</a>[/QUOTE]
Thanks Loren, that is a pretty good article. I've got some more reading to do before I decide whether or not to use it.
Thanks for all the other inputs as well.