I got some new gsp from a hobbyist. I had it in ten gallon with an old heater. The water got very warm. I know it was well over 80. Some of it had opened back up in the sump of my main tank. But now all of it has been closed a long time. Maybe a little over a week. I can see a few polyps stick out. But the mat is closed for the most part and getting dirty. Did I kill it? I read sometimes it can close for 2-3 weeka and open but I worry about the high temp that it was is for a day and the dust and dirt getting on it.
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