Polyps not opening!

[BN2010]

So, a couple weeks or so, some of my polyps have been closed up and not opening. They were doing great forever, and now I have NO idea what happened. Everything else in my tank is doing well, including other polyps.

Tank:
two fudgeray reef LED bars (7000k and 10000k)
temp 79
ph 8.0
amm 0
nitrite 0
nitrate 0
phos 0
calc 450
alk 8

(everything tested with API test kits)

Let me know if you anyone needs to see pictures. I even left the lights off for 3 days this weekend to try and kill nuisance algae that might be on it. I've used chemiclean, and stuff. I try to "dust" them off every day with a turkey baster. I am just so confused and no idea.

Any suggestions? Feedback? Advice? THANKS!!

Brett

[MustangBill]

Please put up pic, you know they say about a picture being worth a thousand words

[SmilinAvnger]

What are you dusting off? Sand? Algae? That may be irritating them... can you stop them from needing to be dusted off? (More flow) Just a stab in the dark with no pics.

[CMD2213]

Is there possibly any Brown fungis growing on them? Light film like look

[BN2010]

Hey guys thanks for the response. Here's some pictures. There's not any brown fungi. There used to be some in my tank, but after I kept the lights off for 3 days it all disappeared. Thanks for the help!

[CMD2213]

Have you changed your direction of flow?
How close are your other corals be careful with their range of stingers/tentacles

[BN2010]

Ok I'll try changing direction of flow. Will also not try dusting them off or bothering them for a couple days. They aren't super close to anything, and nothing has "moved in" on them recently.