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How to look after pet crabs
Fill the tank with about 1/2 to 1 whole centimeter (or more) of sand or coconut substrate.
Place the crabs in the tank once you are home.
Fill the two bowls with crab food and water.

A. A spoonful of tank salt, a tablespoon of neem oil , 1/4 of a pinch of salt, and 2 drops of lavender oil together will work. Cover your crabs with a towel, or cover them with a lid. B. Do not use tap water; use non-chlorinated water. Leave them for a bit of time to get used to the area (choose a warm place and don't move them too much). C. Set up the sunbathing area in your aquarium and let your crab outsize its shell on the sand. Place the tank in a pot of water. D. You will use 3 or 4 gallons. Start by filling the first tank with crab food and placing the crab food and water into the opposite bowl.
Answer:
B.