The plants arrived well-packed and healthy. You cannot really go wrong with these plants. However, since they are so ubiquitous, I plan to use these in smaller amounts in the future and create a more diverse collection. About the idea of them being strong, I think context is important. For instance, some of my fish do not seem to enjoy navigating through or around them and I think this is partly because they are a bit spiky and have a firm structure. In contrast, I put a clump of these in the water with a small female Samurai Betta. Existing literature suggests this is an excellent plant for it. However, the fish is in the process of ripping the mass of plants to shreds, making it seem more vulnerable than I thought.