I use them 2-3 times a week. I cut a little chunk off and thaw in a cup of tank water. Once thawed I stir it up really well and then use a pippet to remove the bigger chunks of the egg sack and mix with LRS and PE mysis. I have been a bit lazy and not removed the egg sack chunks and the fish gobbled it right up so I'm not sure if it is necessary, may depend if your fish will eat it or not.I just picked some up from ACC. Who is using them and what is your routine for feeding them?