Ive just completed cycling a new set-up. Everything is good except for the usual algae types that show up. I added nerite snails a couple of days ago. All went well and they are definitely algae eating machines. Today I added amano shrimp. I'm not sure what behavior to expect when they are first added. I guess I expected them to start eating, which the nerites did almost immediately but instead they are just running around non stop in the tank. As far as I can tell there is no water problem. Its a heavily planted tank with 0 ammonia, 0 nitrites, and 5 nitrates and the ph is about 7.4. I'm not sure if there behavior is normal or if there is something they aren't liking about the tank. Any ideas?