Hey just a few quick questions. I have a marineland 10g halfmoon freshwater planted. It's got great lighting. I use a tetra in-tank filter with waterfall and a sponge filter with power head. Right now there is eco complete substrate but I have bags of sand and a bag of crushed corral. I also have some live rock (now dead rock) in pieces small enough to fit the 10g. I think its foster and smith has a hang on back refrugium is that needed? and what's the best way to bring the rock back to life? copepods? Or really, what's the best way you have found to start a SW nano. I don't think you can start it by using the current filter bacteria can you?