My temp is stable. 77*, I honestly don't know if my mh bulb I bought off Ebay was new or not. It said it was, but it didn't come in it's original packaging. I recently read an Article on RC though that MH bulbs can last quite a bit over a year with only I believe it was, 20% loss of light. Don't quote me on that. It's on the front page though. Temp stays level in my tank though. If he made a poo, are they usually that big? I've seen my other brain poo, but it was nothing like this. There is a Yellow Fiji about 4 in away from him, and a zoanthid colony about 2 in away. I have a Lord Acan about 2 in away at all. Any chance one of these guys could have done this? =*(