I guess it depends on: (1) size of tank, (2) if there are other L114 and amount of water changes, (3) temperature, and (4) how often you feed and what you feed.
Based on my L114s, it will grow slowly from 2.0-3.0 or 2.0-3.5" (SL), and then they will experience a growth spurt and become 5-6" in a few months.