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Chaeto dying fast - PAR 200 too much?

Steverd

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My Chaeto is dying fast.
II had a FULL chamber of Chaeto two weeks ago, now almost nothing.
I am using a UFO light what is giving 200 par is that too much? Is that melting the Chateo?

Temp is 77
Sal 1.024
Kent marine Iron - Manganese
Tropic Marin Pro Reef salt
Nitrate 20

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Thank you

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Spare time

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I have mine directly under an AI prime HD on full blast so I don't think that is it. Any clue what your phosphates are?
 

Pistondog

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My Chaeto is dying fast.
II had a FULL chamber of Chaeto two weeks ago, now almost nothing.
I am using a UFO light what is giving 200 par is that too much? Is that melting the Chateo?

Temp is 77
Sal 1.024
Kent marine Iron - Manganese
Tropic Marin Pro Reef salt
Nitrate 20

THOUGHTS?
Thank you

IMG_3310.JPG
Its not excessive par.
Check iodine with icp test or get some lugols and put in a drop a week.
Removing chaeto reduces iodine.
 

xrouter

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Don't want to thread hijack but I am having this exact same issue and my die off look identical and came here to ask same question. Also can't check my iodine level but have brought some `Continuum Reff Basis Cheato Grow`, cant find out if it has any iodine in it but will be dosing as soon as it arrives.

I turned down my Kesil H80 to half intensity just encase that was the issue but from what people are saying here that is not going to be the issue...readings are

1601236724749.png


Phospate spike seems related as it was stable prior to issues with die off.

1601236920221.png


Tank is two months old and doing water changes every week.
 

Saltyreef

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Don't want to thread hijack but I am having this exact same issue and my die off look identical and came here to ask same question. Also can't check my iodine level but have brought some `Continuum Reff Basis Cheato Grow`, cant find out if it has any iodine in it but will be dosing as soon as it arrives.

I turned down my Kesil H80 to half intensity just encase that was the issue but from what people are saying here that is not going to be the issue...readings are

1601236724749.png


Phospate spike seems related as it was stable prior to issues with die off.

1601236920221.png


Tank is two months old and doing water changes every week.
Is the chaeto your only source of nutrient export?
 

xrouter

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No, Skimmer + socks, think that is too much currently?

I had planned to feed heavy hence the 3 methods but didn't want to over do it until the tank is stable but I'm certainly not going light on feeding currently. I do have diatoms in the sump and so there must be some nutrients?
 

hart24601

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It can be tough to figure out why chaeto dies off. Really if there is a limiting nutrient of any type it will die off. Despite using AWC it wasn’t until I added chaetogro on a doser that it took off despite trace elements being “ok” on triton test and detectable nitrate and phosphate. To the original question, no 200 par isn’t too much. Mine floats about 8” or less under h380 and that was 1500-1800 par last time I tested it at that depth!
 

ScottB

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No, Skimmer + socks, think that is too much currently?

I had planned to feed heavy hence the 3 methods but didn't want to over do it until the tank is stable but I'm certainly not going light on feeding currently. I do have diatoms in the sump and so there must be some nutrients?
Most new systems are PO4 limited unless you inherited some old, PO4 loaded rock (which I have no problem with). What is your test kit for PO4?

Macroalgae dies because something is limiting. NO3, PO4, I, Fe, or lighting. Could also be trace stuff but I've not experienced this problem. A refugium is always a very LATE addition to what I typically build. It is a great tool for solving a nutrient export problem, but IME that doesn't take place very quickly unless someone is feeding far too much.
 

xrouter

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Most new systems are PO4 limited unless you inherited some old, PO4 loaded rock (which I have no problem with). What is your test kit for PO4?

Macroalgae dies because something is limiting. NO3, PO4, I, Fe, or lighting. Could also be trace stuff but I've not experienced this problem. A refugium is always a very LATE addition to what I typically build. It is a great tool for solving a nutrient export problem, but IME that doesn't take place very quickly unless someone is feeding far too much.
All my test kits are Salifert. P04 was barely registering (hard to tell between 0 & 0.03) until the last few week or so. Maybe that was the issue then and the die off is generating the PO4 now.
 

xrouter

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OK I turned off the flow to the carbon and started dosing Cheato Grow and turned light back up full and die off has stopped and cheato is now a nice dark green so clearly I was missing something and based on everyone's comments I think that was iodine but whatever it was the Cheato Grow had instant effect!
 

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