Many Fowler Questions

[Spicer]

The 12g is actually a tank I have setup atm with corals.
I only had a Cleaner Shrimp, Six Line Wrasse, and Fire Fish in there.

The Fire Fish died of ich I would assume tonight.
Did a water change - About 2g. (Really handy having 10g sw ready at all times)

The cleaner is hard @ work on the six line wrasse who has ich, and the tang is just chilling around, with ich.

I could surely bring cured rock completely submerged home.
At least 15lbs of it or so.

Then some base rock.
Will 15lbs of cured lr seed 15-20lbs of base rock?

And also, can I just use the plain old hood lights for now?