Keeping Hypselodoris bullocki in an aquarium

September 28, 2000
From: Patrick Champeyrol

My favorite petshop has recently received a few Hypselodoris bullocki. It's a very beautiful slug. Do know you if they accept other sponges for eating or if they die of starvation? I have read you give to them 'Angel Formula' from 'Ocean Nutrition' and my question is do they eat it?
Patrick Champeyrol

Champeyrol, P., 2000 (Sep 28) Keeping Hypselodoris bullocki in an aquarium. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Patrick,
If you look through the other messages on this page and on Page 1, you will see others have asked the same question. I don't know of anyone having success with an artificial food. Chromodorid nudibranchs eat sponges by rasping off bits of sponge with their radula. I would think that any artificial food would need to be in a solid block so that the slugs could imitate their normal feeding action. I don't know what 'Angel Formula' is but if it a powder or flakes I can't see how the slug could eat it.

It would certainly be interesting to find some artificial food that actually worked, but my only fear would be that if such a food was found then no nudibranch would be safe from the activities of commercial collectors.
Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Sep 28). Comment on Keeping Hypselodoris bullocki in an aquarium by Patrick Champeyrol. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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