Been looking on the green machine at plants to make isle of the crypts a Dutch style scape and after looking through their plants it says on some of the beautiful plants that they have high demand and need high light. At the same time it says HC has these demands but I can grow it perfectly in my 35litre with low light so what do I do as I'm worried I've been lucky with the HC and any other high demand plants won't do well and won't stay red?