Blue Spot Ray

The Blue Spot Neotrygon kuhlii Ray, also known as the Bluespotted Fantail Ray or Bluespotted Lagoon Ray, is a captivating and unique addition to the advanced marine aquarium. This ray is easily recognized by its flattened, disc-shaped body, typically brown or greenish-brown on the dorsal surface, adorned with numerous bright blue spots. The ventral surface is usually white. They possess a long, whip-like tail with a venomous spine near the base, which serves as a defense mechanism.

A minimum tank size of 180 gallons is recommended for a single Blue Spot Ray, with a larger tank being preferable to accommodate their active nature and potential growth. The substrate should be fine sand to allow the ray to bury itself, which is a natural behavior. The aquarium should have open areas for swimming as well as some rockwork or caves for hiding. Due to their size and potential to disturb the substrate, they are not suitable for reef aquariums with delicate corals or invertebrates. Care must be taken when performing tank maintenance due to the venomous tail spine.

In the wild, Blue Spot Rays primarily feed on small invertebrates and fish found in the sand. In the aquarium, they should be offered a varied diet of high-quality frozen or fresh seafood such as shrimp, squid, and small pieces of fish. They may also accept sinking pellets designed for carnivorous fish. They should be fed regularly, ensuring they receive enough nutrition.

While there are no readily apparent visual differences between males and females, breeding in a home aquarium is extremely challenging and rarely successful. Blue Spot Rays can grow to a disc width of up to 16 inches in a suitable aquarium environment. They are generally peaceful towards other fish that are too large to be considered prey, but caution should be exercised when housing them with smaller fish or invertebrates.