Did you enjoy learning more about Air Plants vs. Succulents? Of course, having more flora indoors means that you get more fresh air to breathe. This is one sign your succulents need more light. It's simple. They are one cacti species that produces delicious and plentiful fruits. Cacti can be resistant, but that doesn't mean they should be neglected. The stems may be unbranched or sparsely branching. Succulents are stems that can hold water for long periods of time.