Punctato Butterflyfish

The Punctato Butterflyfish (Chaetodon punctatofasciatus), also called the Spots-and-bands Coralfish, carries a disc-shaped body marked with rows of fine spots crossed by vertical banding. It is one of several closely related butterflyfishes in a visually similar complex, and telling members apart takes a careful eye. In the Indian Ocean proper it is replaced by Chaetodon guttatissimus. The species ranges widely through the Indo-Pacific, from Christmas Island in the eastern Indian Ocean east to the Line Islands, north to the Ryukyu Islands, and south to Rowley Shoals and the northern Great Barrier Reef, with populations throughout Micronesia. Adults reach roughly 4.7 to 5 inches.

Plan on a minimum of 75 gallons for a single adult, though a larger footprint is better given how actively this fish swims. Aquascape with abundant live rock arranged to provide caves and overhangs for retreat while leaving broad, uninterrupted lanes of open water for cruising. A mature, well-established system suits it best, since the fish spends much of the day picking over rock surfaces for algae and small organisms. Because this butterflyfish is on the shy side, rockwork and tankmate selection should minimize direct competition at feeding time.

This is an omnivore that forages continuously across reef substrate, taking both algal growth and small invertebrate prey. In the aquarium, build the diet around seaweed, marine algae, mysis shrimp, and brine shrimp. Algae-based preparations such as spirulina are a useful supplement, particularly in systems where rock surfaces have not yet developed meaningful algal film.

Feed several small meals per day, and stay especially attentive during the first weeks after introduction when a newly arrived specimen must be convinced to accept prepared foods. Once the fish is settled and grazing steadily on natural algae growth within the display, feeding frequency can be reduced. If the rockwork offers little to browse on, increase both the number of feedings and the proportion of algae-based items.

Dried Seaweed Marine Algae Mysis Shrimp Brine Shrimp Spirulina-Based Foods
Reserved and unassuming by nature, the Punctato Butterflyfish spends its time methodically working the rockwork and generally pays little attention to unrelated tankmates. That tolerance does not extend to its own kind or to lookalikes: it can turn territorial toward other butterflyfishes of similar shape and coloration, so avoid mixing members of this complex unless they arrive as an established pair. Several dissimilar butterflyfishes can often share a large system. Take care when pairing this fish with boisterous or pugnacious species, as it is easily crowded away from food.

Reef compatibility requires caution. This species will sample soft coral tissue and the polyps of large-polyp stony corals, and it may also pick at ornamental shrimp, tube worms, clams including Tridacna species, and anemones. Fish-only systems with live rock are the safest placement. Aquarists who wish to try one in a mixed reef should accept genuine risk to sessile invertebrates and delicate crustaceans, and should monitor grazing behavior closely after introduction.

FAQ

Frequently Asked Questions

About the Punctato Butterflyfish

  • Is the Punctato Butterflyfish safe for a reef tank with corals and invertebrates?
    It is only reef safe with caution, as it may nip soft corals, LPS polyps, clams, ornamental shrimp, tube worms, and anemones. Mixed reef placement carries real risk to sessile invertebrates.
  • How large does this butterflyfish get, and what size aquarium does it need?
    Adults reach about 5 inches. House a single specimen in a 75-gallon aquarium or larger, with generous live rock and plenty of open swimming room.
  • Can more than one butterflyfish be kept together?
    Yes, provided the species look different from one another, since this fish largely ignores dissimilar tankmates. It may become aggressive toward butterflyfishes of comparable shape and color unless they are a mated pair.