http://news.bbc.co.uk/2/hi/asia-pacific/8602400.stm
Updated 04-28-2010 at 03:05 PM by melev
I recently got a hammer coral frag. It has two heads, and the polyps are always extended. However, I'm noticing the tissue starting to recede at the edges little by little. I've tested water parameters and all seems good, and I'm also doing regular water changes. It's under a 250watt 14K bulb. Any ideas?
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