There are a couple reasons to have a terrarium: you can develop a range of plants in one, they’re low maintenance, and they do not take up space.
However, the best reason is they look magnificent. Only a warning though: once you begin, you may want more micro-systems! Fortunately you can buy a kit that contains everything you need to broaden your collection. The DIY Plant Collection kit has a 5L bottle, terrarium extendable tools (a mini garden fork and spade that could stretch for any size container), a cork, funnel, perlite, activated carbon (to maintain the dirt clean) and dirt. All you need to add are the crops. This set will make an perfect present for any plant lover.