What causes zoas for form strange shapes like this?

[Danmuges]

I've been having huge problems in my frag tank. I dosed fluconazole and ever since the zoas have looked horrible. Some have even bleached. Of the zoas that are still open some took on some very strange shapes. Is anyone able to tell me what is causing this. Since dosing I've done a huge water change and run carbon.
Params are as follows.
Salinity 1.026
Alk 7.7
Cal 425
Mag 1300

No3 between 2 and 5
Po4 around 0.3 but hard to tell on salifert test. Possibly

 

[ashburn2k]

Your zoas are bleaching

 

[Danmuges]

Your zoas are bleaching

I know but I can't work out why

 

[ashburn2k]

Did you have any lighting changes? My zoa was like that when I changed or upped light intensity

 

[Danmuges]

Did up the light a bit which may have contributed The only bleached once I lowered the lighting again. I can't work out why the shapes are so strange

 

[FishyDP]

What lights are you running?

 

[Danmuges]

What lights are you running?

Ai prime hd's

 

[Westoncase]

I got recent got a my first zoa frags. What exactly is bleaching so I don’t do it? Also running ai primes

 

[MrObscura]

0.3 po4? Usually I'd say dont worry too much about nutrients but that's high.

What's your prime settings and height? And how far below the surface are the zoas?

Though all that may by moot, considering you dosed something and then had this issue. Odds are they're related. I'm not familiar with medications though, so I'm not sure how it'd effect you zoas.

 

[MrObscura]

I got recent got a my first zoa frags. What exactly is bleaching so I don’t do it? Also running ai primes

Its when a corol loses color udually from too much light. Unless you have the prime maxed out and the zoas near the surface you shouldn't have any issues bleaching them. They're pretty happy in a wide range of lighting.

 

[Sir Chris]

When I dosed fluco to a 4x rate for bubble it caused them to close up but not have those very bizarre shapes
Many times ive dosed fluco also.
Do they always maintain that shape?

New ultra rare star (bounce)zoa’s!

 

[Danmuges]

It's been a week now and still holding that shape. Should I consider selling for $1000pp?