Learn About Freshwater Pipefish - as part of the expert series by GeoBeats. Freshwater Pipefish - they occur in many different places around the world, but this particular one comes from Malaysia, and it lives in rivers and fairly fast flowing water, but it occurs towards the shore. Tends to feed on small invertebrates and things it can find there. So in the aquarium it is a little difficult to feed in the fact that it does not eat prepared foods, but you can feed it a lot of the different frozen or live foods. A unique fish, not aggressive at all, tends to get along with all small fish very well and its just a unique thing to watch and something you would really not expect to see in fresh water.