I am struggling to get a refugium going. This is my second try and my chaeto immediately disintegrated after one week. My first try I attributed it to putting it in with undetectable nitrates and very low phosphates (silly I know). Now my system has been running longer and my phos has been climbing, 0.5-0.6, and nitrates around 5. On the day I got my chaeto, bad timing but I was also battling a bad case of cyano and had dosed chemiclean and shut off my skimmer and such. Could this have nuked my chaeto? I run the neptune GRO LED every night from 9p-3a.