If this was a gonodactylid with eggs, you would not she her. She would stay pretty much sealed up in her cavity for four weeks without feeding. The first three weeks the eggs would develop and hatch, the last week she would stay with the larvae as they went through three molts. By the last molt, they would have exhausted their supply of yolk, become photopositive, swim out the entrance, and enter the plankton.
It is highly unlikely that any would survive in a standard aquarium for more that three or four days. They don't have the right food and filtration systems will do them in.
Roy