i have 2 common musk turtles one i just got yesterday.it wont eat but will swimm around alot.the turtles dont fight but swimm next to each other so will they be freinds?also what is the best temp for them?iu have water about 15 inches.i feed reptomin worm and rivershrimp.soes this give them any vitamins??i got aqual clear filter 110 for them.