I have a small 1/2 thumb sized piece of Australogyra Zelli. It is not clear to me the flow or lighting requirements for this guy. I have heard standard SPS high light high flow and I've heard that they do not like too much light. It isn't doing great where I had it - low flow under relative weak 10K T5's so Ive moved it to my larger tank, near the top under my 150W MHs and in lots of flow. Its is brownish mostly but seems to be greening up slightly at the base after only a few days. If anyone has had one of these please share your experiences.