I have a torch that has been in my tank for a few days now. A few hours one head sucked all the way in. I thought that a hermit might of crawled on it because there was on the rock next to it but now both are halfway in. I did a water change earlier and all parameters are good (ph, ammonia, no2, no3). I don't have the tests for alk, cal, and mag yet. It's under a fluval sea 25w led in a 36g tannk. Is this normal behavior???
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