Heres how I do it. I buy medium peeled tail on shrimp from Costco (the blue bag). I empty the whold bag into a colander and rinse them just enough to thaw slightly. I than take poultry shears and cut each into 3-4 pieces and put them into ice cube trays, 2 shrimps into each cube, and fill up as many trays as I can. I than top them off with a little water so the shrimp is fully submerged and won't get freezer burned. The next day I empty the trays into a ziplock freezer baggie. Than when it's time to feed I can take out as many cubes as needed, throw them into a small bowl of water to defrost, and feed. The prepping into ice cube trays saves alot of time of cutting the shrimp into pieces everytime I want to feed. I can just take some cubes out, come back in a bit, and start feeding