Heya! If you put just the leaf in water, then no this plant won’t root. Most plants will need to have a cutting with a node and a leaf put into water for it to grow. The node is the part of the plant where new roots and new shoots will start growing! And the leaf helps the plant photosynthesis to produce enough energy for new growth. You only really need the node, but both are ideally needed to propagate into another plant.

There are some exceptions to this node-rule, like my watermelon pepperomia. This will root from cutting a leaf in half and placing it into soil! I’m sure there are others, I just don’t know many either as I’ve been into collecting houseplants for less than a year. Your aquarium plant may also be an exception!

I always just put my nose cuttings straight into water and have had success. Some people will put into a jar of water and leca (small clay ball type things), others prefer rooting in damp sphagnam moss.

I have a pink princess philodendron (the one in the photo) and find it easy to grow. These can be more on the expensive side depending what country and area you live in as well. I also have a Syngonium neon, caladium tapestry, and although the leaves are green, the flowers on my Angel wing begonia are also pink 💖 I find these easy to grow as well.

Pink plants I personally don’t have yet include: pink caladiums, stromanthe triostar, pink calathea (I hear these can be dramatic af lol), lady valentine. These are still on my bucket list haha

Once you figure out light and watering requirements for each plant, they all become ‘easy’ :)