Red/pink fluid after radiator swap

Hello, I am Rene, I watch your video on how to change a radiator for a 2005 Kia Sportage V6. There was a part where I was supposed to disconnect all of the hoses connected to the radiator. I believe I might have disconnected a hose I was not suppose to and a red/pink fluid came out. From the looks of it I am assuming its transmission fluid. There is also a tube that hooks around from the back of the radiator that I believed was not tightened enough because when I drove that car from one side on the street to the other there was this red fluid all over the place spilling from the battery down. I wanted to ask you all to be sure. Maybe it is radiator fluid (not coolant), maybe I need another radiator. I am getting ready to add transmission fluid and have watched your video on that process as well. I just wanted to be absolutely sure before proceeding.