I don't doubt it can be done, but I would think you'd be harder pressed to do it with your specific setup. I've seen the PAR readings for that particular optical configuration and they don't have the power at greater depths. I have probably brought back anemones in less light, but this species is a bit more demanding than most of the others I've "saved," however. I'd either use a narrower optic or get more of them (preferably both). The lighting in the user had in that thread is more intense from the numbers I've seen.