Need your thoughts on acro coloring

[Abhishek]

Hi Randy ,

I have recently got ICP testing done for my water .Attached is the result .
Except for high Barium which I attribute to Aquaforest salt and trace additives of Aquaforest and high Aluminium which I attribute to marinepure blocks , nothing seems alarming to my untrained eye .

Yesterday performed testing and here are the numbers -
Ca - 425
Mg - 1420
Alk -8.17
N- 5-10
P - 0.05-0.06
K - 390

My biggest issue is acro colors . Lately am observing that my Hawkins Echinata is browned out , a deep green milleapora is lightened and got yellow base . This leads me to think there's iron deficiency . I can't measure iron as it's so transient but wonder if I can still dose it without running into algae issues .
I don't have any algae and I run 2x250 watts radium over a 30 in x 30 in x 18 in tank and hence pretty high light everywhere .
Secondly , my blues are ok as my Oregon tort is pretty blue but other blues are wasted .
Purples are not that great for valida.
Hence wondering if I should start dosing potassium iodide .

Request your thoughts and expertise after looking at the report .If you spot anything I need to tweak .

Regards,
Abhishek

 

[Abhishek]

To add to the above summary , I don't run a refugium and hence worries a little with iron overdoing .

 

[Graffiti Spot]

I have never seen or experienced iron affecting colors in a tank with nutrients. And never have seen it read on a test kit.

 

[Abhishek]

Thanks for the reply .
Looking at the ICP report , what impacts green color as it seems green in my tank is changing either to brown or yellowish .

 

[Graffiti Spot]

Light and nutrients are big factors.

 

[Randy Holmes-Farley Verified Community Expert]

I do not believe any of the claims that specific color changes relate to certain trace elements being high, low or otherwise. Paleness, brownness, failure to thrive, etc, yes, but not specific colors.

Dosing iron is easy enough to try, if you want. I think it often desirable, especially if you have macroalgae.

I don't think iodine does anything useful, but again it is easy to dose and see.