I bought my fronts as 1" fry almost two years ago. Even with weekly H2O changes good food and TLC my
two biggest males are only about 4-5 inches. The females are much smaller with the runt about 3-3 1/2.
I've heard that Lake Tanga fish are just slow growers.
All that said, Fronts are totally awesome, regal, beautiful fish and very much worth the wait for growth.
I expect maybe mine will think about spawning in another year or two!