My first batch are almost a month old! I still have over 3 dozen of them. The second batch was far too large to keep all of
them. I gave about 4 dozen to a Boston Reefer who raises clowns. He's doing well with them. I still have over 100 of those babies left too! They are two weeks old now.

All are taking BBS and the smaller ones are still taking Rotifers. Some pictures.. Enjoy:

Notice the differing colors on these three week old fry!?

contrast 3wk - Updated Baby Pictures

A close up of a working Pseudo-Kreisel system with approx 100 fry in there. Notice the ammonia alert card. Nice invention.
They take a couple days to 'season', much like a swing arm hydrometer, but work very well.

B2 1week - Updated Baby Pictures