Anemone's I just drag the food through their tentacles, until they latch on... then drop it roughly over the center of it's body, to make it easier on the thing.
Smaller things and critters I feed either with a turkey baster, or a length of airline, connected to a foot long piece of Rigid Tubing. I find the tubing easier to aim at the smaller polyped critters, and it also allows a greater control of force. I place the airline tubing in my mouth, and draw the liquid (powdered foods are fed in suspension of tank water) up the rigid tubing by gently sucking on the end. Careful, doesn't take much to pull it through the length of airline - you could get a mouthful yourself.
Position the end of the tubing upstream from the coral or invert I'm feeding - blowing directly onto the coral doesn't seem as productive to me, they just close up. Then by very gently blowing out the airline in my mouth, I can control the stream of food into the water... this then blows by current into the coral, and voila. It takes a bit of practice, and patience to get the amount of pressure right when feeding. Just like when drawing it up, it doesn't take much to blow your tube all out at once. This tends to disperse too much at one shot, and a lot gets wasted... Skimmer starts going nuts, nutrient spikes may follow, etc. etc. ad nasueum...
- Mac