I have about 8 Lab. Hongi fry who are now 1" to 2" in size. I'd like to add them to my 55G (species list below) where their mom and dad live, so I start to get a group going and can eventually get a good M/F ratio.

How big do they have to be before I can mix them in like this and have them be reasionably likely to be OK? I'd to a big rock rearrangement when I did it.

Thanks!

1.5-2" depending on other tank maktes and sizes