Which means you need to consider tank mates as well.
One thing that I'm not clear on when I've researched these issue in the past (I never actually came across it so thats why i'm not clear) What is the earliest size that they can be acclimated? I would expect that any size would be good but I'm not 100% sure... Red Devil perhaps you have come across this in your readings... I remember that you were doing quite alot of asking at a time about them perhaps you had heard?