Rainbow chalice losing tissue looking for help

[model field]

1st and 2nd picture is 17 may
3rd and 4th picture is 17 June
After 1month losing colour and flesh
Mg 1350 ca 450 no3 10 po4 0 kh 6.7
Last 2 week checked kh is 8.0
weekly dose amino and spot feed
14 june check kh is 6.7
use 8 day slow raise kh to 8
22 now kh is 8 at 22 june
should i up mg to 1450 ?
and how to stop losing tissue

 

[Mr. Mojo Rising]

If phosphate is really zero thats an issue, they do need some phosphates.

My first thought is its more related to lighting, either too bright or too too, but I'm guessing too too. Do you know the par level?

 

[Uncle99]

Your Kh should not be fluctuating.
Zero phosphate bad number

 

[crazyfishmom]

For fleshy LPS like chalice, restor is a great tool to help turn them around when they start losing tissue. This chalice is finicky, and those alkalinity swings plus the zero phosphate are definitely enough to cause recession. How are you maintaining alkalinity and how frequently do you test?

 

[model field]

If phosphate is really zero thats an issue, they do need some phosphates.

My first thought is its more related to lighting, either too bright or too too, but I'm guessing too too. Do you know the par level?

For fleshy LPS like chalice, restor is a great tool to help turn them around when they start losing tissue. This chalice is finicky, and those alkalinity swings plus the zero phosphate are definitely enough to cause recession. How are you maintaining alkalinity and how frequently do you test?

I using doshing pump to maintain my kh , already 1 year keep at 8-8.5, usually 2 week test 1 time,but this 2 week start alk drop until 6.7

 

[model field]

Your Kh should not be fluctuating.
Zero phosphate bad number

Yes I also don't know why my kh drop so many this 2 week ,I using doshing pump 1 week add 1 kh,but my tank this 2 week drop 2 kh per week

 

[crazyfishmom]

Yes I also don't know why my kh drop so many this 2 week ,I using doshing pump 1 week add 1 kh,but my tank this 2 week drop 2 kh per week

Sounds like consumption has increased in your tank. I dose about 2 dKh daily in one of my tanks. It’s common for this kind of thing to happen as tanks mature.

 

[model field]

If phosphate is really zero thats an issue, they do need some phosphates.

My first thought is its more related to lighting, either too bright or too too, but I'm guessing too too. Do you know the par level?

I no sure the par level but should be 150-200, It's placed with open brain& cynarina same level

 

[model field]

Sounds like consumption has increased in your tank. I dose about 2 dKh daily in one of my tanks. It’s common for this kind of thing to happen as tanks mature.

Yes I already drop about 0.2 dkh daily now and now stable at 8 kh 5 day ,but still losing some tissue daily

 

[UMALUM]

As mentioned phosphate at zero is never a good thing but if your other coral aren't showing the same signs of stress I would say your test is off.
I would recommend a bath in lugols to eliminate the possibility of infection or bacterial issue.

 

[Uncle99]

Do you have a full tank shot?
How old is the system?

 

[moretor1]

Reef roids will help it gain energy and raise phos levels

 

[model field]

Do you have a full tank shot?
How old is the system?

My tank 1 year 3month

 

[model field]

Reef roids will help it gain energy and raise phos levels

I using hikari coral food ,tm zooton and tm phyton

 

[moretor1]

I using hikari coral food ,tm zooton and tm phyton

I would use a frozen cube mixed with reef roids to form a thick paste and feed that to your corals

 

[Uncle99]

Mature tank, all other corals look great.
If it’s only one coral out of many that is unhappy, maybe just the coral itself.

I would change nothing when my tank looks like that

 

[model field]

I raise & control my alk 8-8.5 mg 1400
This 3 day finally stop losing tissue