Bleached And Hiding

[ADVRESOURCE]

I have two Rose BTA's. Both have migrated under some rock overhangs. Therefore, they don't get much light. I have 4 VHO's and 3 - 200W 10k halides. Each bta seems to be expanded however, tentacles are receded. One bta came out from under the rock formation for about two days but, ended up going back under the rocks. The clowns still populate the bta's bringing them food.

Any suggesting to having the bta move out in plain view? My tank is a 240 with good water flow and decent lighting.

 

[ADVRESOURCE]

The one bta seemed to migrate under the live rock after a frogspawn fell on it.

 

[ReefRascals]

Not sure what the spectrum you have is with your VHO's and the 200?? halides is confusing too. But assuming they are ok (and I might use the other corals as a guage) I would check alkalinity and temp.

Keep Alk at 2.5 meq or higher, and temp below 80