No, I know what type of shark I was thinking of, and it definetly SHOULD NOT be in a 160 gallon. You (Octohk) realize that this seven inch shark can grow 12 inches a year to be 3.5-4 feet long. aka half the legnth of your tank and who knows how many times as long as it's width. It really doesn't matter either way what aculeatus's relation to GPO's is, a 7 inch fish (no matter what type) is good enough food for any octo, however you're best bet would be trying it with an aculeatus.dwhatley;138062 said:First, please note my personal octopuses are kept in species only tanks and I have no desire to try mixing preditors. That being said, I appreciate members who decide to expeiment as long as they know the eating habits of the critters they mix and post the results even if the mix fails.
We have (or had since we have not seen Dom around for awhile) an experienced reefer who had good luck keeping an octo with a ribbon eel. The bamboo is not likely to hurt the octo (I suspect the opposite is true as well since it is too large for the octo to eat and not a threat - L8_2_Rise - the bamboo is closer to a catfish than the sharks you are thinking of and an aculeatus is nothing like a GPO) but the snowflake may be a problem and likely falls into Thale's "It is OK until it is not" category.
Do you know what kind of cuttles you have? The only ones we see here (US) are the small bendensis and they can mate and lay eggs multiple times over a roughly 18 month lifespan. Most of the larger ones seem to mate, lay eggs and then die within a couple of days. If the eggs hatch in the same tank as your preditor stew, you will not likely see them though as everything you have mentioned will eat the young at the hatching. If you wish to try to raise them, you will need to remove the eggs and read some of the cuttlefish forums on keeping and feeding the new hatched young. If you have a larger species, IT is likely to be a threat to the octopus if it is still eating.