I've used Minox quite a lot in the past, and it can be very fiddly. The Minox tank, or the Nikor or Kindermann stainless steel reels made for the size, are, IMHO, a worthwhile investment if you are likely to want to develop more films in future. They were quite expensive and even collectable at one time, but prices seem to have fallen lately ( loss of interest in the format?) and they can sometimes be picked up on Ebay with a little patience.