I got these bad boys (saphire blue zoos) 3 weeks ago cuz I saw this thread and was curious. They were a 3 poly frag and after 2 weeks it already has 7 total now! The pic was taken 2 days after and you can already see a baby has grown. My EE, sunshine, and atomic green were bigger frags and are growing too but my blues have exploded. For some reason my sunshines closed up for a week or so then I saw a thread about treating with vitamin c. WOW after a few days they have opened and are looking good... More about that post later when I put new pics up..
Anyways I think smaller frags explode more because of the fight or flight reaction.
saphire blues
sunshine zoos
eagle eyes
atomic green zoos