So you have no idea what caused it? How long did it take to happen? Had you added anything, coral, etc., to the tank recently?
I went on vacation for five days and when I returned, it had begun. The only thing that happened while I was gone is a Mandarin died. I pulled his body out as soon as I saw it. Of course, I immediately thought that an ammonia spike initiated the episode but several AA members didn't think that this could have caused it (reference my thread posted two weeks ago entitled HELP! Corals Bleaching). Steve-S and several other members were assisting me. Within a few days, I had lost most of my SPS
and a couple of LPS
. There had been no new additions to the tank for at least 6 weeks.
I had not been dosing Iodine before the RTN
episode. I saw several AA postings re: Lugols additions after searching it on this site. My LFS
initially recommended it so I thought I'd check out what othet AA members had to say about it.
What brand and ballast/lamp type? I've never heard of a 300w. Did you recently upgrade to MH? MH
Actually, the 300W indicated total system MH
wattage. I have (2) 150W 20,000K lamps. The bulbs are approx 6 months old. The PC
bulbs are approximately 10 months old.
You're fortunate not to have experienced this yet... When it happens, it happens FAST. When you get a chance, check out that other thread that I referred to. Let me know if you have any ideas of what could have caused it.