I keep my tadpoles in plastic cups (cup size is not terribly important, but the larger your cups are, the fewer the times you have to change the water). Always rear tadpoles separately to ensure that no cannibalism occurs. Make sure to use filtered water so that there are no chemicals: many chemicals can have an adverse effect on a froglet’s development. I use tannins in my water because it is a natural way to fight infection and bacteria, and the tannins add extra nutrients to the water. Water changes are required anywhere from every other day to once a week, depending on the size of the tadpole’s enclosure. If you are not using tannins, then change the water every other day.
I feed my tadpoles blood worms, brine shrimp, algae wafers, chlorella, or spirulira. All of these items can be purchased at a local fish store or online.
Egg yolk, boiled cabbage, and cottage cheese can be used to rear tadpoles that are egg feeders. Once all four legs have emerged from the tadpole, I transfer the tadpole into a larger container with little water and chunks of cork bark. The cork bark floats, giving the froglets opportunities to get out of the water. Be aware that the froglets can drown once they have gotten to a certain point in their metamorphosis. When you see the froglets consistently on a cork piece, take the new froglet out and place it into a baby cage. Full metamorphosis should take about 2-3 months. Keep the tadpoles’ water around 72-75 degrees F. High water temperatures will speed up the metamorphosis, which may result in under developed froglets.