I would just feed them fresh veggies along with a varied shrimp-specific-food diet and between that and their molts, they should get all the calcium they need without dosing more.
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20g platy, , 2 x 10g shrimp, 3 x 20g shrimp, 7.5g shrimp and 1 great dane/mastiff puppy.
Sump Pimp #2
My Tanks and my shrimps
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