i like reefcleaners and have used them quite a few times. However, the snails they sell are quite small as renee clarified.stated. I like that as they can get into the nook/crannies of the live rock, but sometimes miss the larger astrea/turbos and the cleaning they provide. Im actually on the hunt for a CUC for the 120 restart, have a small crew from RC in there now, but need to re-up and was looking into billys reef connection. I have never used them, but they seem to have decent packs at a pretty good price as well. Im thinking some from RC and some from billy, to get the perfect mix.