The plant should have at least 2-3 inches of new soil on all sides of the root ball—around and below it. That will give it enough space to grow its roots into and grow larger overall. (Once it fills that space, you’ll have to repot it again, of course!) Your bonsai pot could be big enough to serve as a temporary home, but it depends on how big the plant is now.
Artificial light will keep the cactus alive, but it really needs some sort of sunlight to thrive and bloom. Even in a room with bright, indirect light would be better than solely artificial light. It sounds like keeping it in the sunny window in your kitchen would be a good idea.
As for the blooms: Christmas cacti can be finicky, so the plant is probably just adjusting to its new space. Additionally, it will bloom better with more light. You may not get blooms this season, but hopefully that will change next year!
The plant should have at least 2-3 inches of new soil on all sides of the root ball—around and below it. That will give it enough space to grow its roots into and grow larger overall. (Once it fills that space, you’ll have to repot it again, of course!) Your bonsai pot could be big enough to serve as a temporary home, but it depends on how big the plant is now.
Artificial light will keep the cactus alive, but it really needs some sort of sunlight to thrive and bloom. Even in a room with bright, indirect light would be better than solely artificial light. It sounds like keeping it in the sunny window in your kitchen would be a good idea.
As for the blooms: Christmas cacti can be finicky, so the plant is probably just adjusting to its new space. Additionally, it will bloom better with more light. You may not get blooms this season, but hopefully that will change next year!