Bullock's Nudibranch - Hypselodoris bullocki
Bullock's Sea Slugs (Hypselodoris bullocki) are easy to spot with bright purple or fuchsia bodies adorned with an opaque white edge on the mantle and yellow to orange gills and rhinophores typically. Some variation to these colors may be observed from specimen to specimen.
This species is found in the western Pacific as far south as southern Queensland. It is also found in north western Australia, Thailand, the tropical western Pacific, and the eastern Indian Ocean, and is a common offering in the aquarium trade.
The term "nudibranch" means "naked gill" and refers to the fringy, tassel-like gills visible on many species. This group include animals that we commonly refer to as "sea slugs" as well as the sea hares popular for algae control. As a group, there is not much known about many species of nudibranch and more are being discovered and reclassified continuously. While some like the sea hares are well studied and we know enough about their life cycles and diets for them to be maintained, the diet and requirements of most nudibranchs is largely unknown. Most are thought to feed on sponges, polyps, tunicates. Some of the most colorful nudibranchs are actively collected and sold for aquariums but many more come as "hitchhikers" on rock and corals, for better or for worse.
Use caution when placing any nudibranch in your reef system if its diet is an unknown. Nudibranchs in aquariums are generally shortlived, both due to their natural short lifespans as well as the difficulty of meeting their dietary requirements.
That Fish Place
|Common Name||Bullock`s Nudibranch|
|Scientific Name||Hypselodoris bullocki|
|Reef Safe||Yes, with caution|
|Invert Safe||Yes, with caution|
|Difficulty||Moderate to High|
|Max Size (in inches)||2|
|Min Tank Size (in gallons)||55|
|Diet||largely unknown, possibly sponges|
|Specific Gravity Range||1.022-1.026|
|Toxic||Yes, if stressed or eaten|
|Armed Forces Americas|
|Armed Forces Europe|
|Armed Forces Pacific|
Ratings & Reviews
by A concerned little girl
As cute and adorable as these little babies are, they only feed on a specific kind of sponge called Euryspongia which I've found it's not something you can buy anywhere at all. Alternatives have been tried but with no success, so if you buy it'd just be a nice sea slug to observe for a few days and maybe take a picture or two but not your long term buddy.
<br>People have said they've seen them eat algae, that mans that are starving! and will not last long.
Too Bad :o(
Arrived nearly dead and only lasted a few hours. No guarantee on these. :o(