ur link is dead ponder.
btw i got free swimmer yeay!! even better the half that are free swimming, im 90% sure i saw atleast 2 eat decapped. hard to tell though kuz man there small, and the parents kept "mouthing" the ones i was watching... man there protective lol.
i also setup a bbs hatchery, using the dumbest stuff. my older egg tumbler broke as i was trying to set this up, so i used a long thin pasta cooker, it works well enough, not leaving any bbs eggs still on the bottom. i used regular table salt- maybe too much, i dunno.