A terrific close up photo of Lisa Francis' Hippocampus hystrix Seahorse submitted for display at About Saltwater Aquariums.
While they are tenatious in their pursuit of food, Seahorses are not aggressive feeders, doing best in a tank with slower moving fish such as the Mandarin Dragonet. Slow swimming Seahorses also do not fare well in aquariums with more than a very light current. The DIY Seahorse Tank which is taller, rather than wider, was specifically designed to house a Seahorse or two and a Mandarin Dragonet.
Thinking about adding a Seahorse to your tank? See the Saltwater Aquarium Fish Compatibility Chart first.

