my frog died last week. i decided to buy a couple red eyed tree frogs instead of another vietnamese. they seem to be healthy. one has white spots that im keeping an eye on and they both have lines across their lower back. they look like dry lines or atleast thats what im hoping they are. are lines along the lower back common in red eyes?

the place i got them from werent taking care of them well. they were in some sort of critter keeper or herp haven (they are both almost full grown) and their was nothing for them to climb on or to keep the humidity in. i wouldnt have normally bought frogs in these conditions but they looked healthy and the store only had them 2 weeks. so we'll see how it goes