I finished cycling my tank after ~5 weeks, so I bought 2 beaugregories and I noticed that the smaller one had puffy white lips a day or two after bringing them home. The larger one's lips were normal, but he bullied the smaller one until it died (3 days after I got him). I just noticed that the bigger one now how has puffy white lips. He has been hiding way more than he used to (I moved him from a 55g to a 29g tank). At first I thought it was just stress, until I saw his lips. I brought a water sample to petco and they said the parameters were "perfect." Assuming that is correct, does anyone have any suggestions regarding medication? The 29g only has the beaugregory, 1 coral banded shrimp, 5 red leg hermit crabs and a turbosnail.