Nothing in paticular, just some good hiding spots. All of my rams nibble at the java moss quite a bit, so it would be nice to add some if you don't have any, but not crucial. Your other stock looks like good tankmates for the timid rams. Make sure the tank is well established with a stable pH as they are very sensitive. I would recommend, as others have to me, that you find a breeder. LFS stock is usually very poor quality. So far I have purchased four from two reliable mom and pop lfs'. First one never seemed right after acclimation and lived 6 days, second one seemed great the whole time I had it yet only lived a month, third one never seemed right after acclimation and died after two weeks, and the fourth one...well we are on week 3 now. I was well prepared for this going into it from other members on here that have lots of experience with them. I haven't been able to find a breeder locally or one selling singles online. Definitely find a breeder if you can. Otherwise hopefully you will get lucky with lfs stock.