My Red Eared Sliders tank.?

every body else here is right but thats not what you asked you asked for tips heres some if there big enough take them outside some times they like make sure your watching them also a 20 gallon tank would be nice the next thing is these turtles love shrimp and live food it may hurt you to put a ew goldfish in there but it is healthy ps i still have not doe the goldfish thing i just cant do it