yeah it will be for one frog, by the way what do you mean calcium skip a day and nightcawlers what are they haha only heard if crickets, meal worms and locusts, cheers
If you start with calcium on Monday you can skip to Wednesday giving him vitams.. Friday back to calcium.. 1 vitamin, 2 calcium intakes should do find for him a week.. 3 calcium intakes is also fine for froglets..