I think lightning not going to make or enhance your fish color brother it's his food since flowerhorn are carnivore so the fish need help for enhance the color and pellet is good example brother. But that doesn't means pellets will works like magic shaft but your fish genes is also role the important things beside that water parameter make sure you provided a proper one (clean water plus Ph around 7-7.8). Hopefully this will help and GBU
best regards,
jonz88
best regards,
jonz88