I started with one polyp of Dendro (I don't know if it is small, regular or giant or if there is any difference) and with in two months it has developed an additional 5 heads. I do not go out of my to target feed it, however when I feed the fish the currant pushes food right to it. Also I have a very low fish load in that tank (180 gallons with 1 wrasse and three tangs) so it is over ran with pods of all types. I am sure it catches plenty of its own food as well.