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i bought it at a petstore and i know it was on it when i bought it because i saw it when it was stressed because of moving it, i just e. mailed the petstore to see what they say
it killed two heads, sat right in the middle of them. went to the petstore, and they said that if i cut the dead part back, that new heads will grow out, i think ill wait though and let it settle down
If you use pliers you can break the barnacle off, I had three in my torch and removed them. The head with 2 barnacles died but the head that had one has bounced right back and is looking very nice and healthy.
You would be surprised. Of the two heads I had with barnacles the one receded and died but the other opened up a tiny bit then after about a week it's fully open now, way more so than when it had the barnacle. The head that died had two barnacles in it and I think it was just to much damage to recover from. It would have died with the barnacle so one dead and one survived not bad odds.