Hi Bro, not stunted, just that it seems quite thin.... Frequent, water change may help (For me 20% if I dun put anti chlorine (Me Kiasu), 30% - 50% if I use aged water (Cos I got a 8ft FGT), per week).
Maybe tankmates that compete for food can help too....
Just my 2 cents, cos there are lots of lau jiao in AF
