Acropora frag whitening

[fr3n0z]

Hi guys, I have a frag of acro that is gettin whiter. IN my noob eye don't seem necrosis but just whitening. What can cause that? The neighborhood (in second photo) acros is in good shape.

Water Param are:
9.8 alk
8.2 pH
1360mg
410 ça
5no3
1.025
26*C temp

Any hint?

 

[billyocean]

Could be a number of things. Do you know your p04 in the tank? Low p04 and higher alk can cause problems but it looks like your other acros are doing fine. How old is the tank? I can't see good enough for my eyes to see any bite marks from AEFW and hopefully that isn't the case. It looks.like encrusting was minimal and perhaps the frag is newer. There's also the fact that sometimes an acro just doesn't make it no matter what you do. The key here is we need more info and don't do anything to alter your tank for one acro at the moment.

 

[thelonereefer1]

lack of lighting ? Do you happen to know what your park levels are?

 

[fr3n0z]

Could be a number of things. Do you know your p04 in the tank? Low p04 and higher alk can cause problems but it looks like your other acros are doing fine. How old is the tank? I can't see good enough for my eyes to see any bite marks from AEFW and hopefully that isn't the case. It looks.like encrusting was minimal and perhaps the frag is newer. There's also the fact that sometimes an acro just doesn't make it no matter what you do. The key here is we need more info and don't do anything to alter your tank for one acro at the moment.

Last test the 04 sept all was at 0.00 dose some po4 but today did not tested (Hanna po4 ulr), I will test later. ARFW what is it? Frag are a month oand a half old, travelled 72hrs instead of 24 but they survived. It did well until around 7/10 days ago when it started. Nothing have been changed. Parameters are pretty stable. Tank is a bit over 1 year.

lack of lighting ? Do you happen to know what your park levels are?

Tank is a 20g long and light are 1 noopsyche K7 mini at 55% blue and UV and 20% white and 2 pixie 30w at 90% blue l, 40% white 15% red and green.

 

[billyocean]

You never want p04 0.0..it will starve the acros. The stress from the 72 hour trip may have stressed that acro more than the others and it just never recovered and slowly is dying/dead. As long as there's not algae growing in it there is still hope. Last ditch effort of algae grows is to snip the live tips off and replug

 

[fr3n0z]

You never want p04 0.0..it will starve the acros. The stress from the 72 hour trip may have stressed that acro more than the others and it just never recovered and slowly is dying/dead. As long as there's not algae growing in it there is still hope. Last ditch effort of algae grows is to snip the live tips off and replug

I'll check po4, I had no3 at 0 too but dosed and today was at 5 so I've thought also po4 were up but maybe I am wrong. I'll check when I get home

Thanks for the answer guys!

 

[littlebeard]

Is it happening fast or slow?

Do you see any polyp extension in the white area?

 

[fr3n0z]

You never want p04 0.0..it will starve the acros. The stress from the 72 hour trip may have stressed that acro more than the others and it just never recovered and slowly is dying/dead. As long as there's not algae growing in it there is still hope. Last ditch effort of algae grows is to snip the live tips off and replug

po4 atm are 0.01 (hanna ulr)

Is it happening fast or slow?

Do you see any polyp extension in the white area?

i don't know how to define since those are my first sps.
the 17 august it did not have anything. The 30 august i don't clearly see the photo but aswell it seems not affected. I will say that is happening in a span of a week or 10 days.

No visible polyp extension in white area.

 

[thelonereefer1]

Last test the 04 sept all was at 0.00 dose some po4 but today did not tested (Hanna po4 ulr), I will test later. ARFW what is it? Frag are a month oand a half old, travelled 72hrs instead of 24 but they survived. It did well until around 7/10 days ago when it started. Nothing have been changed. Parameters are pretty stable. Tank is a bit over 1 year.

Tank is a 20g long and light are 1 noopsyche K7 mini at 55% blue and UV and 20% white and 2 pixie 30w at 90% blue l, 40% white 15% red and green.

I would try to rent or borrow a par meter if possible. While spectrum is important. Mounting height and tank depth play a role in par as well as intensity. I’ve seen and experienced corals especially sps whiten in too low of par. It would be fairly easy to rule out if your par levels are good without having to tinker with water chemistry

 

[fr3n0z]

I would try to rent or borrow a par meter if possible. While spectrum is important. Mounting height and tank depth play a role in par as well as intensity. I’ve seen and experienced corals especially sps whiten in too low of par. It would be fairly easy to rule out if your par levels are good without having to tinker with water chemistry

Not really an option to get a par meter even tough i would like to check it out. I tend to exclude light problem because the acro frag just next to it does not show any sign of problem ATM and is growing normally. And is just like a 5 cm from the other one and on the same height.

 

[Macdaddynick1]

Not really an option to get a par meter even tough i would like to check it out. I tend to exclude light problem because the acro frag just next to it does not show any sign of problem ATM and is growing normally. And is just like a 5 cm from the other one and on the same height.

Par isn’t your issue, it’s PO4. Partial RTN IME always a sign of low po4. It’s the only case where acros are salvageable. Not enough light would starve/stn most acros. Too much light too fast usually causes complete RTN. Just my .02 . Dose po4 and keep an eye on it.