New light, BTA shrunk.

[Reefin' Alaska]

I have 2 Rose BTA's, that were under a Gen 5 Radion that the body had cracked on and moisture got into one of the screws in the LED array, and Ecotech refused to replace it. So, until it gets back from RMA I'm running a Kessil a360X on this 25 lagoon that came off my bigger tank.

Is it pretty normal for BTA's to shrink and get really dark under new lighting? These things was 6-7" across and split back in June. It's massive. I am going to end up moving one to my bigger tank here soon, as they were taking up an entire side of my lagoon. I'm just not sure what to look for as far as health under new lighting, what to adjust based on how they look. I'd appreciate any help. =)

 

[Timfish]

If light intensity increases a lot you should expect BTAs, and a lot of other corals, not to expand as much.