Well "BANG GUY" and "pbienkiewi", you guys are right!
It came on my colt also but the first one did not touch any coral and was never around the colt, so I let it be and it died a few days later, then bam another one and it was on the colt so taking BANG GUY's advise I tossed it. I came home from work and another one, again on the colt so I tossed it too but you can tell that the colt has some minor damage.
Nobody seems to know exactly what this is
but it seems like it likes colt's!