hi i just bought a pixie frog a month ago from a pet store that i suspect didn't take great care of him, i put him in a 20 gallon long tank with half water half gravel/sphagnum moss, he seemed very happy for the first month but i noticed now that he has thrown up twice and is looking very pale in complection.... i'm worried about the poor thing... can anyone help me with this dilemma. Should i change his moss or give the tank a hardy wipedown...?

