I occassionally feed my bamboo shrimp dissolved fish food (algae wafers) using a medicine dropper bought from a local drug store. First, I scoop a small cup of tank water from the aquarium and drop a tiny piece of algae wafer into the cup. I let it sit there for a good couple minutes; then, take a plastic fork to break down the wafer until it becomes powder/particle like. I then take the medicine dropper, suck up the dissolved wafer water, and squirt it directly into the shrimp's fans.
