I keep various things, including Tincs, Leucs, Vitts, Bicolors, and some "locals". All are contained seperately with seperate equipment/feeding tools, etc. My Tincs are always a bit thin in appearance after about 8 months. 1 of 3 keeps weight fine, but the other 2 it seems no matter the feedings stay a bit "elongated" in appearance. Not like death's door thin, but just not right. Could this be growth patterns, and things will balance? Thanks so much!