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If you have SaveAChick electrolytes with vitamins, put that into the water as directed. Then dip it's beak letting it swallow as often as possible for the next 24-48 hours. Try it in a chick chair with feet touching the floor to strengthen it's legs. Keep the heat lamp 18 inches away at 90 degrees on the floor with a thermometer under the lamp, plus a cooler space to escape to. Keep its butt cleaned of poop once a day if it is pasty. Chicks mailed to feed stores can get really stressed in shipping, and they may be dehydrated. If you don't have electrolytes, add 1 tsp of sugar and a small pinch of salt to a quart of water.
For the first few days after hatching a chick will sleep a lot. Electrolytes for chicks can really help them off to a good start but like eggcessive said above sugar and water will do the trick to. As for the crooked toe it is a good idea to treat it like a broken finger and get it supported so it is straight and cannot bend or else the bone will harden to the shape of the bend and will never be straight again.