I think mine grew around an inch maybe a lil less in almost 2months. he definitely got taller and just plain bulkier , he looks great but my Dempsey grew sooooo much in 2months. i have been babying him so much doing like 25% w.c 3 times a week with aged/primed water. his colors are amazing and hes super spunky and active but i guess terrors don't grow as fast as say dempseys. (hes in a 20 gallon tank)