Hi all I need A couple Suggestions im trying to help out a friend, so here is the deal my Bud Bought A 75 Gal Aquarium and bought A red eared Slider cute lil thing, but his wife wants to put fish in the tank as well so im trying to find in inbetween i've seen others with turtles in there tanks but usually its a soft shell I believe also the wife already bought some super size fancy goldfish fantails but the poor little boogers got attacked by the turtle they took them out and put them into another tank. My question now is can a redslider be housed with big fish in such a big tank or are they too aggresive and if they can be housed with fish what type of fish would you recommend i think large cichlids like convicts can hold there own but i can be wrong any suggestion's would be greatly appreciated thank you