HELP!! My daisy polyps turning brown!

[JY13131]

My green star polyps have been growing well, I have had them 2 weeks, a cutting from my LFS. Last night though I noticed they did not look as "lush" and upon closer inspection can see that some of the stems are turning brown. Now I know THAT is hard to kill. Everything else is doing fine. No info on water because I do not TEST my WATER!! Please do not yell at me.

[Sambo]

Ummmm....OK, no yellling!

Couple of quick qqs (I think you'll find for every question you ask at TRT you have to answer on overage 4 more!)

Lighting - what sort and how old are your bulbs? How do they differ from the LFS lighting?
Placement in the tank - how different to the LFS placement?
How are the other critters in the tank - any changes?
What's your normal maintenance routine wrt to water changes/skimmer/filter/carbon, and how much and often do you feed?

[JY13131]

OK I can do this! I have a 29 gal oceanic biocube, new so lights are new. (About a month old, but I used rock and sand from existing reef tank) I have standard nano lights (72 watts?) and the LFS had it in a tank with metal halides and up close to the top. Mine is in the middle, so definately less light. All other inhabitants are good. I do weekly water change of 15-20% using LFS water. No filters or skimmers because it is a nano. I feed 1-2 times a day frozen, rinsed food, only as much as they eat but not for more than 3 minutes. Phew!