Is this "alk burn"

[swk]

Thanks!

 

[swk]

Sorry for the crap phone pics

 

[trueblackpercula]

I don't think so, looks more like a nutrient deficiency.
Try feeding the spa more

 

[Reef Bass]

First pic definitely not.

Second pic maybe, though it's hard to tell. The end of the short left side of the "Y" looks rough.

 

[swk]

Thanks guys. Gonna boost my reed mariculture feedings and drop my vinegar dose a tad.

 

[Chrisrush]

What is your alk levels? How much vinegar?

I wouldn't add any more food just yet. What are your PO4/nitrate levels?

Definitely doesn't look good (2nd pic). How long has the frag been in your tank?

 

[swk]

Is this "alk burn"

What is your alk levels? How much vinegar?

I wouldn't add any more food just yet. What are your PO4/nitrate levels?

Definitely doesn't look good (2nd pic). How long has the frag been in your tank?

The pieces are about 6 wks in my tank. Only things that have changed since this started happening are lowering alk and increasing vinegar by 4.4 ml

Alk was 9.1 dkh and have dropped it to 7 dkh over 6 days to move it more inline weigh recommended levels while carbon dosing

I dose 50 ml vinegar in a 75 gal DT with 20 gal sump. Was increased from 45 4 days ago Vinegar is dosed once an hour during the ft photoperiod to minimize effects on ph. This is done with a brs doser and timer

Po4 via Red Sea pro kit was .02 yesterday
Nitrate was <1 via elos and closer to 4 with Red Sea pro.

Thanks for any and all help you all have given

 

[swk]

Tapatalk is not cooperating with me...

Nitrate was less than 1 with elos and closer to 4 with Red Sea pro test kit

 

[Chrisrush]

The pieces are about 6 wks in my tank. Only things that have changed since this started happening are lowering alk and increasing vinegar by 4.4 ml

Alk was 9.1 dkh and have dropped it to 7 dkh over 6 days to move it more inline weigh recommended levels while carbon dosing

I dose 50 ml vinegar in a 75 gal DT with 20 gal sump. Was increased from 45 4 days ago Vinegar is dosed once an hour during the ft photoperiod to minimize effects on ph. This is done with a brs doser and timer

Po4 via Red Sea pro kit was .02 yesterday
Nitrate was <1 via elos and closer to 4 with Red Sea pro.

Thanks for any and all help you all have given

I'm not an expert on vinegar dosing so I can't comment on that but I run BP and ZeoStart 3 as a carbon source, so I do have some experience in carbon dosing.

Your levels seem fine. PO4 and Nitrate look good.

6 weeks in the tank is enough time for it to be stable so I don't think that is the issue.

6 days to drop the alk is fine. No issue there.

What lights are you running? Flow?

 

[swk]

Lights are reef radiance LEDs. I have 2 2' fixtures for full coverage along the length of the standard 4' 75 gallon DT.

Flow is a mp40 on one side in short pulse mode and a wp25 on the right side running in their random "else" mode I think it's called.

Like I said the only 2 things that've changed are the vinegar dose rising a bit and the alk fluctuating by being lowered. I'm hoping stability will heal this as I had something similar happen to a green acro that eventually healed itself and went away.

 

[westreef]

I am just curious. What is your PH now?

 

[swk]

Ph is 8.2 via API