Here are all my links for Dinoflagellates that have been helpful.
Todd Crail's Dino Page: Treating Dinoflagellates
Another excellent battle of the dinoflagellates page
Ron Shimeks page on dinoflagellates (referenced in the above article)
University of Calgary link
This one cracked me up! At first I thought who would deliberately want to grow these at home??
After clicking on the link, they're actually pretty darned cool! I wish the crappy dinos I had were bioluminescent, at least they would be better to look at than brown goo.
Growing Dinoflagellates at Home