A couple acro frags that were doing great just randomly RTN'ed out of nowhere. All the others acros are doing fine... Any reason why?? One frag was encrusting, had polyps out and great polyp extension. Came back home after work and was dead and all white. Been doing great for months. Other frags have their color, polyps out and are growing. I had a slight alk swing of less than 1 dkh so maybe that's why. What other reasons could be attributed?
