Yup, kuda fry are super tiny. Good luck though. If you raise rotifers, you should set it up similar to the bs hatchery, where you have several small hatcheries because they have a bad tendency to crash. Several of us on the coast were raising rotifers last year, but all our systems died out after a few weeks to months. If you get some reef-roids & rotifers, maybe try feeding both at the same time (ie. trick the babies into eating the non-live food so life will be a lot easier later). BTW, rotifers need to be fed phytoplankton. Doing the whole phyto, rotifer, bbs routine will be very labour intensive & time consuming (as well as take up valuable space) so I hope you have an understanding spouse
Again, good luck.
Anthony