Definitely, don't take it out of your tank into a bucket every day to feed it! All that will do is stress it out even more. Put a small cup or tupperware bowl with some holes drilled in it. Then you can squirt with a baster or syringe as much food as you want without fouling your water or other inhabitants messing with it.
Put the cup over it and squirt a drop or 2 of selcon, zoecon, zoe, whatever you have and a tiny bit of frozen cyclo in it. This should get it to open up. If it opens feed it more, if it doesnt keep trying 1-2 times a day until it does. You need to get it eating as soon as possible. Shouldn't take more than 2-3 days.