I have my orchids growing under some LED strips from Active Grow. The plants are thriving, and several Phals now are sending out flower spikes. This leads to a question about the best distance between the lights and the plants. The lights are now about 6" above the tops of the plants. If left where they are, the flowers will be up to or above the lights. If I lower the shelves to keep the flowers about that distance from the LEDs, the leaves will be much further away and will get less light. Any advice?