Prickly Octopus, Adopts aculeatus

Abdopus aculteatus is a relatively small species. Mantle length usually is around 5 cm and maximum arm span around 30 cm. I would recommend at least a 20 gal system. They are day active, are not prone to escaping, and feed well in captivity and one of the best aquarium species available. You must take into consideration that hey are not a long lived species lasting around 12 months in total.  However, if you get a female, she has probably mated before capture and you can watch the brooding process which is fascinating in this species.

They can be very curious and active,  changing colour and texture all the time! You just have to enjoy the time you have. Corals will have to be low light since octos don't like really bright lights and no anemones. There are some where their octos live with other organisms, all kinds of corals and even Fish. The corals should all be fine as long as they are not stinging. I read one report where the octopus loves to molest the anemones running her arms through theirs, she will steal their food sometimes.

For further information on keeping Marine fish please follow this link below

https://ornamentalfish.org/what-we-do/advice-information/care-sheets/caresheets-marine-fish/