If you are hatching the eggs without the parents, place them in a 5 gal. tank with an airsone under and off from the eggs, with the eggs facing upward. Use Maroxy as an anti-fungal agent-I have also had success with methylene blue and acriflavine, but Maroxy doesn't color the water. They should hatch in 2-3 days at 82 degrees, and free swim in another 2-3 days. Begin feeding newly hatched BBS at this time (free swimming). Once they are all hatched, begin 50% (MINIMUM) water changes daily. Add the new water slowly-drip it in, for the first week or two. At 2 weeks you should move to a 10 gal tank. After 2 more weeks, split the fry and move into 20 gal tanks. Of course, the number of tanks will depend on the number of fry. They should be dime body size in 7-8 weeks, nickel in 9-10 weeks and quarter in 12 weeks.
If your fry are not active and fall to the bottom, check the pH and make sure it is not changing rapidly overnight via CO2 dissipation. Use aged, well aerated water in water changes to avoid this.
Joel