Ok, got 30 RCS coming later in the week and just a question or two. First, I have a 20L that finished cycling about a month ago. It was bare bottom but had about half the bottom covered in java moss. Friday I added gravel and a seasoned sponge filter-the 100gal variety. I also added a flower pot and two 6" sections of PVC that have been in other tanks at least six months. I added a little crushed coral as our water is way too soft. I wanted to know if it would help to add a seasoned piece of driftwood that has been in an established tank about 3-4 months? I just want them to have enough biofilm to eat. Just for my piece of mind, can anyone recommend some type of food that works well? I use blanched peas cut in half for my crayfish and read that would work for the shrimp as well? Any suggestions greatly appreciated.