Hi, I don't think it's a cracked MH bulb because i just replaced them with brand new PHOENIX 14k bulbs, two weeks ago. I do on the other hand have a huge Frogspawn colony and i do notice that i see some of it's tips flying around in the water column, i also have a green tipped hammer and i used to have a yellow torch and an anenome. I had no idea that once the tips were detached from the LPS it could still sting SPS ?
Why would it kill the whole colony though if just a tip landed on once or two branches of a stoney ?
Thanks