So,i have 2 turtles, but I never actually asked for them. The reason I even have these turtles is because my mom thought they were cute and kept begging my dad to get them, she did this whilst not knowing a single thing about keeping turtles and every attempt to better the turtle's life has been from my advice. Okay, so the situation is that right now I have 2 4-inched red ear sliders being kept in a half filled 30 gallon tank. These turtles mostly get only pellets and does not really eat vegetables, mostly because alot of attempts of me trying to get them to start eating vegetables have failed because my mom thought they were begging for pellets, they don't get any supplements either, we also don't have any vets or turtle medication in our part of the country because most people here are still ignorant about pet keeping. Many times I have tried to persuade my mother to get a bigger tank ending in failure, now one of the two turtles, the female one (the other being male) has started to nip at the feet of the male turtle. Can anyone tell me what causes this behaviour, and what I can do to fix it?