it is a x10 wireless cam and yes the computer has to be on...i am using windows media encoder which is a free download and i send it to my Server operating system that has windows media streaming on it.
I think i have finished on the big fish...1 yellow tang, 1 regal tang, and 1 emporer angel. Everything else will be smaller like anthias and wrasses, and of course my clownfish. I would love to put a trigger in the tank, but hate to give up my crab population.