be sure to cover your intake tube/filter..i cover mine with a piece of pantyhose tied off by a rubber band till my babies are bigger..dont want no babies sucked up..
i feed mine the crushed flakes, and with the movement of the water, the flakes should sink down to them.. my mom con, will actually eat, then spit the food out for the babies to eat..babies i fed 3-4 times a day.. not a lot,just enough for them so snack through out the day.
with my baby danios and cories i changed a lil water each day.. just a couple of gallons each day..my baby tank is a 20 gallon, so i would usually tank out 2 or 3 gallons a day..
hope this helps.