lighting comparison

[GreenSpottedPuffer]

I find that if i even move my sps to a new spot in the tank, they sometimes get a little brown for a few days to a week. Different flow, light, ect will effect them even within the same tank, so you will see a change when moving them but then I would say the upgrade in lighting will make them grow/look much better in the long run.

[tgoeujon]

i understand the mh is better than the pcs but my concern is more with the depth since i want to have some room for grow out my rock work wont go right to the top and 18" compared with 30" is gonna be a big jump