To be clear, when I purchased my trio they were only around 4-5cm and I grew them on, the info I have read it does appear Reds take longer to mature than other types - I was just checking what others experience was on this front.
I have a Male & Female pair together in their own species tank.
(For additional info:
1 pair Brown breeding in own species tank. (Have had 6 spawns from these - fry grown on and sold to LFS)
1 pair Calico breeding in own species tank. (Purchased small, grown on - just had first spawn, seems like 70ish fry)
Growing on Albino longfin (x2) and a Lemon longfin in own species tank.
1 Female Albino & 1 Lemon Female in own species tank (Awaiting finances to allow Male purchases, or, awaiting maturity of longfins to see if I already have a Male).
I do wonder whether to remove the Red Male and place him in the large community tank to try to mature him that way - my finances do not allow me to purchase a mature Male at the moment (whole reason why I got them small and grew them on).