Just wondering, my four turtles seem to like to stick together, and stay close together where ever they are in the tank. Just when they're swimming, or just moving away, very often one scratches another in the face (sometimes eye), so I am wondering, is this harmless, or could any serious injury occur? This is particularly evident in my largest turtle, she is swimming a lot, and often pushing the others around, just from her size and weight, and often gets another in the face with her front claws.
Turtle sizes are 12, 8, 8, and 6-7.


