Thanks for the replies guys. I feed it it mysis shrimp, squid and raw prawns. Actually the reason why I thought there is something is that I went back to the lfs I bought it from, the same btas they had didn't look like it.
If it helps my leds are 2 x reef octopus grow marine with 12,000-14,000k. Its sitting 5 inches above the water level. I would have thought that if the bta was getting too much light, it would have moved, but it hasn't. I only see my tomato clown host it during the night when the light goes off.
I also have a large Duncan, a frogspawn, morphs, an Aussie elegance coral, large hammer, pulsing Denise, torch, and a large leather and they are all bloomin.