Hippocampus erectus are native to the Atlantic Ocean, spanning the coast from Cape Cod to South America. These seahorses are larger in size than other species and can grow up to 7 inches long. Often yellowish in color, Hippocampus erectus have characteristic patterns of white lines following their neck contour, giving them the name of “Lined” seahorses.
In contrast, Hippocampus reidi, from the Syngnathidae family, can be found throughout the Caribbean Sea and the Western North Atlantic Ocean. These yellowish seahorses have a narrow, smooth body with a long, thick snout, giving them the name “Longsnout”. Hippocampus reidi can grow quite thin and long, up to 7 inches, and can be distinguished by their rounded coronet.
These captive-bred “Neon Yellow” seahorses are a hybrid of Hippocampus erectus and Hippocampus reidi, both of which are known for their hardiness in aquariums. These hybrids are bright yellow in color and have much fewer, if any, markings than other seahorses. These “Neon Yellow” seahorses are social animals and will do great in reef tanks with live coral, but prefer a species-only tank as they are peaceful and slow moving animals. Seahorses change their body color based on their surroundings, so be sure to stick with bright yellow, orange and blue decorations. With a pristine tank, enough fresh or frozen mysis shrimp, and the proper care, these seahorses will thrive!