That's cool and impressive. Needing some more details on how you got that far
Ad Rotifers
Never raised rotifers. I have to look into that
They're 23 days old as of today. Went on vacation for 3 days and had to leave them under the care of fish sitters and only lost one. Still have 21 all in a 5 gallon tank at the moment. Apparently they can develop swim bladder problems if only fed baby brine shrimp so I made the effort to get them onto pellet food which, of course, is also important if they're ever going to be sellable.
I change about a gallon of water a day and have a tiny filter in there as well.