I started feeding Harley a small piece of shrimp, scallop or clam in a small water glass.
One of the most noticeable things was Harley repeated frantic darting across the entire aquarium seemingly looking at the glass and it's contents as Harley darted past.
After many fly-bys Harley settles on the glass, dives in and "captures" the piece of shrimp.
We also have been feeding Harley small Red, Blue and Yellow legged Hermit crabs. Harley pulls on the crab to eat it.
I still have to video the actual capture and eating.
However the Hermit crabs are very vary small about the size of a half a pea.
Last night we feed Harley the first Fiddler grab. The first problem is that Fiddler crabs live in brackish water and will die in salt water . Thus I wanted to find a way for Harley to relatively quickly find the Fiddler crab.
The solution was to place the fiddler crab in a small vase, with a small opening. The Fiddler crab could only escape with difficulty. By now Harley was accustom to the glass and the food inside.
Last night we put a female Fiddler crab in the small vase in the aquarium.
At about 2:30 at night Harley started the frantic darting across the aquarium, as has been the case when faced with food in a glass.
I have attached the video.
20210629 2-28AM First Fiddler Crab Meal.mp4
In this video you can see Harley touch and then pull the crab toward her, drop the crab and try again.
After capture, Harley waits presumably for the crab to die. The closeup allows you to see Harleys intense breathing and the siphon pumping water out. Water is sucked in from the Octopuses bottom and pumped out through the siphon .
Harley then retreats to eat in seclusion.