The minimum of 90 days is assuming they are eating whole mysis shrimp for a few weeks. The batch that I have has been eating whole mysis without any live food for 3+ weeks. I’ve struggled in the past getting fry to take frozen. This batch took to the frozen quickly. Once on frozen their growth rate is amazing. These guys are already over 3 inches (7.6 cm). The average adult size is 5 – 7 inches or 12.7 – 17.8 cm.
IMO they could go to new homes now, but I think I will keep them and try to get them to color up and get a little bigger first. Besides, I’m sort of interested to find out how many males I have. I strongly believe there are more males born, and not everybody agrees with me on that.
In the wild the numbers are somewhere around one in 1000-1500 that make it to adult. My 78% survival rate was based on a small batch of only 37. Live food wasn't as difficult to keep up with; the weaker were given an indefinite amount of time to pull through. Since they quickly took to the frozen, brine was reduced, then eliminated, which also reduces the bacteria that comes with the brine.
I don't know that I will have that high of a success rate on a batch of 400+. I also don't know where I would put 300+ fast growing juveniles.