Hey mate, bend or cut the leaves growing to the mid of your plant now( the one poiting directly up after lst).
They will change position and shadow your whole plant.
The clips are fine, i use them too in my grow you can check it out, would be a pleasure to me. But i have to say they lose color very fast, in my past i worked as a plastic specialist with carbon and glass fiber and i can indeed tell you that aint healthy. The coloring from the plastic gets sucked up by everything living, so your plants.
Greetings.