lol...right now she is about 25 inches. From what ive read they dont usually exceed 4.5 feet. it seems to me she is growing extremely slow but im not sure. i only started keeping records about a month ago. In case you didnt already know this about colombian rainbows.....when she is full grown, she will be a dull brown with very little pattern to no pattern at all. i still think shell be interesting. she has an awesome disposition.