Two Little Fishies' Julian's Thing is a multipurpose reef aquarium tool that you can use to feed corals, anemones, zoanthids, seahorses and other creatures such as timid or slow-moving fishes. For some reef critters, this kind of targeted feeding can mean the difference between life and death. But it's more than just a feeding device. You could use it as a cleaning tool, a siphon, or for several other potential applications. The replaceable tips were easy to cut, our tester reported, and the tool was versatile, allowing doses to be directed precisely where they were required. Cleanup was easy, and disassembly and storage were no problem, as all parts are removable.