Not sure about plant #1 but plant #2 looks like Ludwigia. Needs high light, red color comes from co2, propagates by cutting and replanting when roots grow from the stalk, sensitive to nitrates and prone to dissolving if you're too high. 20-40 is enough to make it start to deteriorate. Otherwise a great plant. I've found it autoprunes when leaves become too damaged, shedding them on its own so you don't have to worry about pruning just catch the stray leaves in your net and dispose.