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You are here: Home / Captive Bred Fish / Angelfish / A Look at the Swallowtail Angelfish

A Look at the Swallowtail Angelfish

by greg.chernoff

Some fish are desirable for their rich personality. Others are sought for their intense coloration. Particularly amongst reef aquarists, some are valued solely for their grace. And there is hardly a reef-dwelling animal more graceful than the lyretail angelfishes (Genicanthus spp.). The lyretail angels, from the common Lamarck’s angel to the “holy grail” masked angel, have always held the interest of newbie and veteran marine aquarists alike. Even so, as it just recently has been released from commercial production for the first time, the swallowtail angel (G. melanospilos) will most certainly be getting a lot of well-deserved attention throughout the hobby.

The incredible Captive bred Swallowtail Angelfish.Swallowtail Angel: Like no Other

Absolutely, the BIOTA swallowtail angel (sometimes called the black spot or blackbreasted angel) is a beauty. And it possesses plenty of personality, thank you. But when it comes to poise and elegance, this fish (even compared to many other genicanthid angels) is supereminent. In the proper setting–a large marine or reef tank with generous open swimming area–it is unforgettable. Even if that is at all overstating this fish’s natural beauty, it is entirely safe to say that pictures cannot do it any justice.

A feature of the species that most immediately stands out to fishkeepers is its shape. It is deeply compressed laterally as are most of its family members. But it is considerably curvier than other angels. Luscious curves indeed… Its well-rounded head, shoulder and belly taper towards its anterior like a fiery comet. Both the dorsal and anal fins terminate in rather sharp points. The tail is yet more impressive, longer and more lyre-shaped than that of the fish’s genicanthid cousins.

As in other members of the genus, this fish exhibits a high degree of sexual dimorphism. Both male and female swallowtail angels are exceptionally attractive. Females have a metallic baby blue base color that is richest in the face and fades gradually towards the hind. A thin, bright blue lines runs along the margins of her dorsal and anal fin. A vivid yellow sheen fills in the rest of the dorsal fin, fading like a golden mist into her midsection. The top and bottom of her white tail is heavily edged in black. Males share the blue background and edging; and, that is pretty much where the similarities of coloration end. An orange line fringes the blue edging of the dorsal and anal fins, breaking into widely dispersed spots before reaching his body. Dark, thin, vertical bands run across the entire flank and forehead. The edging on his tail is much fainter than the female’s, fading to silvery grey in-between and bearing orange speckles that emerge from the bands over the caudal region. Long, silvery filaments extend from the tips of his tail fin.
[CFish]

Still, there’s much more to a swallowtail angelfish’s panache than its body shape and markings. There is something in the way it moves… The manner in which is so deliberately dashes over the aquascape is mesmerizing. Particularly around feeding time, it effortlessly dances circles around its tankmates as it meticulously snatches tiny morsels from the water column. If you believe that open waters are a waste of tank space, this fish will prove you wrong and then some.

Captive Care

At around seven inches length upon reaching full size, the swallowtail angel is actually a bit smaller than the average angelfish. Still, given its activity level, it requires a bit more swimming space. Thus, an aquarium volume of 125 gallons or more is recommended (some suggest providing an even larger tank). Open aquascapes are preferable to aquascapes that are filled to the rim with rock. A full lid should be in place to prevent fatal jumps.

This fish is not an especially finicky eater. Its main fare should be meaty. Larger pieces of prawn, mussel, etc. should be chopped down to a manageable bite size. Fully adjusted specimens will likely accept flakes and small pellets. That being said, the swallowtail angel is a zooplanktivore that will very much enjoy and benefit from the inclusion of live zooplankton in its diet. For this,
live copepods, amphipods and brine shrimp are entirely suitable.

Swallowtail angels seldom present compatibility issues. They (along with the other genicanthids) are easily the most reef-safe among the angelfishes, very rarely if ever taking a nip at a coral, clam, etc. They generally get along pretty well with other fish. They may not, however, get along with their own kind. This is especially so with males. In many cases a single male can be successfully maintained with a single female or small harem. Small groups of females can also be kept, though some aggressive contests may take place. There is a rather interesting reason for this.

In the absence of a male, a dominant female will transform into a male. This means full color change and all. The change is irreversible. This might be an exciting development for a monetarily minded aquarist, being as the purchase price of males exceeds that of females by a factor of 2-3x.

With a lifespan of 10-15 years, the stunning Swallowtail Angel can provide its keeper with an enormous amount of satisfaction.
[CFish]

Reader Interactions

Comments

  1. John says

    July 30, 2019 at 12:37 pm

    Good write up! It’s true. Photos don’t do them justic. If I ever have a tank large enough I would love to get several.

    Reply
  2. zadok says

    July 30, 2019 at 3:08 pm

    I can’t wait till I get a large enough tank to house a beautiful fish like these. This makes me want one even more!

    Reply
  3. robert vice says

    July 30, 2019 at 4:38 pm

    beautiful but 2 big for my tank

    Reply
  4. Jose Pacheco says

    July 30, 2019 at 7:10 pm

    Beautiful fish but I have small tank

    Reply
  5. Matthew Lucero says

    July 30, 2019 at 8:16 pm

    amazing fish. def have to look into this one more.

    Reply
  6. Stacey Perry says

    July 30, 2019 at 10:26 pm

    I love them. Awesome fish.

    Reply
  7. WWIIIREEF says

    July 31, 2019 at 6:07 am

    Love the swallowtail! Have been reef safe for me so far! Nice spotlight article!

    Reply
  8. melissa says

    July 31, 2019 at 6:26 am

    beautiful

    Reply
  9. melissa says

    July 31, 2019 at 6:29 am

    beautiful

    Reply
  10. Tyler.gore.90 says

    July 31, 2019 at 6:50 am

    It’s always great to get more information on viable reef safe fish.

    Reply
  11. Tim J says

    July 31, 2019 at 9:26 am

    They are absolutely gorgeous fish. I just need a bigger tank!

    Reply
  12. CHRIS MATHIS says

    July 31, 2019 at 9:49 am

    Great fish but the tank is too small.

    Reply
  13. Cole B Presley says

    July 31, 2019 at 11:45 am

    Ugh Small tank problems lol – no crazy cool fish

    Reply
  14. Jered Hedrick says

    July 31, 2019 at 12:41 pm

    Great write up. Thank you

    Reply
  15. Andrew says

    July 31, 2019 at 2:48 pm

    Love these angels!

    Reply
  16. art anderson says

    July 31, 2019 at 7:00 pm

    12419 judge doucet rd

    Reply
  17. Melanie says

    July 31, 2019 at 7:52 pm

    Love angels. Swallowtails look cool. I don’t have a swallowtail but I have an emperor, passer, flame, and queen.

    Reply
  18. Tami says

    August 1, 2019 at 4:59 am

    Someday I’ll have a tank large enough…

    Reply
  19. Colton Rood says

    August 1, 2019 at 9:43 am

    Comment

    Reply
  20. Nick Venditti says

    August 1, 2019 at 2:22 pm

    Very nice

    Reply
  21. Alex Lin says

    August 1, 2019 at 4:31 pm

    They are so pretty!!!

    Reply
  22. Alex Lin says

    August 1, 2019 at 4:31 pm

    They are so pretty!!! Love how they look!! Learned a lot about them !!

    Reply
  23. James Fisher says

    August 1, 2019 at 4:45 pm

    Love to have one may be my next purchase!!! Thank you Jim Fisher.

    Reply
  24. Alex Lin says

    August 1, 2019 at 7:29 pm

    Great fish! love them so much. will wanna try to put one in!!

    Reply
  25. lawrence zapata says

    August 1, 2019 at 8:11 pm

    I would love one but my tank is to small.

    Reply
  26. Eugene Botts says

    August 2, 2019 at 6:18 am

    I’ve never had one but I’m sure interested now!

    Reply
  27. Justin says

    August 2, 2019 at 12:28 pm

    Who doesn’t love a swallowtail angel?

    Reply
  28. Tony Holliday says

    August 2, 2019 at 2:16 pm

    Wish I had a tank big enough for these.

    Reply
  29. jay says

    August 2, 2019 at 3:19 pm

    Lovely fish. I love the lines on the males.

    Reply
  30. Darell says

    August 3, 2019 at 5:05 am

    Nice read, was not aware of this fish before. Something to look into when i can manage a tank upgrade.

    Reply
  31. akreef aquarium says

    August 4, 2019 at 7:43 pm

    Interesting fish.

    Reply

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