Install your planted jar somewhere it will get bright, indirect light. The indirect light will allow the plants to grow, while preventing algal blooms direct light can cause.
Initially, your plants may shed a few leaves as they get adjusted and recover from the root pruning. Remove these leaves as they die, and any further dying leaves as the plants grow. Top up water as it evaporates, and prune the plants as you see fit. If the plants aren’t growing well, or there is an algal bloom, the position you have the jarrarium in may not be suitable… More at TPH.
I may actually try this to brighten up my rather minimalist desk.