Originally posted by MaroonClownFan
How hard is it to cultivate phytoplankton?
It's a pain at first but once you get the hang of it and have the equipment set up it will go easier. One of those things where you need to make some mistakes to learn and improve. The most difficult IMO is keeping the Phyto free of Rotifers and Copepods.
What is required to do so?
Air pump, clear containers, light, fertilizer, and a starter culture. Some online stores sell starter kits. 2 liter pop bottles work well for the containers. A shop light will do for lighting. I recommend a commercial Phyto fertilizer.
What corals benefit most from this and how often is it used?
Very few Coral benefit directly from Phyto, only a few actually directly eat it. The jury is still out on that. The Rotifer, pod and larvae population will thrive on the Phyto and the Coral will definately benefit on the increased food availability.
Guy