What are signs of acropora bleaching

about 5 days ago I purchase acropora humilis the polyps on the most of the main branches are not extending or barely extending and the tips are starting to turn white I have VHO lighting 2 blue 2 white 75 gal. the coral is about 3/4 tank height water parameters are normal if this is starting to bleach is there a way to save it. need help thanks and also I have a similar acro for 6 wks and is doing fine

 

Can you post a pic?

 

i can try but not a very good camera

 

there not very good pic you can kinda see the polyps out on the base but not so much any where else or very little

 

I am off to bed if there anyone that can help I'll check back tomarrow evening thanks for any input

 

The coral looks a little bleached but otherwise ok. The white tips are growth and the polyps will probably come back out after the coral adjusts to your tank a bit, assuming you have good water and enough light for it. Oh, and that's a montipora digitata. Not an acropora.