Over the years of trying various LEDs, I have killed lots of SPS corals after converting from T5s and MHs. Even with the advancements of LEDs, new controllability and versatility, I would rate my success about 60-70% at best. Some SPS just can't hold up their original nice bright colours. Often my advice to my clients is to supplement with T5s after having limited success with their purchased LEDs.Before my trip to Dusseldorf, I have seen lots of photos of the German Triton tank and knew this tank is running purely on LEDs. I JUST have to see the actual tank for myself to convince the colours and growth in that tank is REAL!