green slmmer?

[tjl116]

well i finally changed my light bulbs, i had 2- 250 watt 10kse corallife bulbs about 13months old. well i switched to the xm 10k bulbs. with in 1 1/2 days my green slimmer started to die and in 2 days it was completely dead! all my levels are good. could it be that the new lights stressed out my coral?
thanks

[nicklepickle]

The newer bulbs will put out way more light than the older bulbs. I think it was the intensity that caused your problem. Trying putting some screen over the tank for the next few days to acclimate the corals again.

[tjl116]

yeah it didnt even dawn on me until this happened! thanks for the info.

[ReefWreak]

you absolutely nuked your corals. Sorry bud.

I've got 3 month old 10k Reeflux on my tank right now in luminarc minis. I tried some of my old 6 month or even 1 year old XMs in the same setup for a few days, and my corals started bleaching. You've got to VERY carefully and SLOWLY acclimate to XM 10ks. They're usually twice or more the intensity of most other bulbs. I love the colors that come out of them too, but I'm going to try radiums to see if I can get that "faux flourescent" look going.

[ros_sco]

I even had a bit of bleaching on my green slimer switching from 3 x 175 watt hamilton 14k to 2 x 250 watt radiums in luminarc minis, and I used window screen 2 layers for 3 days and 1 layer for 3 days. Killed the most exposed part but the rest is ok. I am waiting to see if it re-colonizes the dead part. That is the only coral that couldn't handle the change.