I've read that calathea plants require indirect sunlight in order to thrive. I'm currently keeping my two calathea about 8 feet away from a window, where I know the direct light won't hit them. But I'm worried that they aren't getting enough light. I'm thinking of buying a light-diffusing screen similar to the below photos, placing that in between the plants and the window, so the plants can be closer to the window, get more light, and still be safe from tip burn:
My question is- will a screen like the above accomplish the job of diffusing the light in such a way that the plants will be safe from leaf burn? If not, is there another product I can buy which will do the job?