is this a high aluminium amount

[Hellybell80]

hi all,

I've just got back my ICP test results.
Iodine is low which i can correct but my aluminium amount is high. Is this amount an issue?

I did the test because some of my corals have receded, and I'm loosing polyps on my didgis and montis.
Alk is tested every 2 days and is 8.3-8.6.
I've attached the icp report.
Any help appreciated

 

[GainesvilleReef]

hi all,

I've just got back my ICP test results.
Iodine is low which i can correct but my aluminium amount is high. Is this amount an issue?

I did the test because some of my corals have receded, and I'm loosing polyps on my didgis and montis.
Alk is tested every 2 days and is 8.3-8.6.
I've attached the icp report.
Any help appreciated

I had problems with my leather coral with Al at 3 times that amount. I did not have problems with montipora or other SPS. You might want to look for a coral pest.

There was a great discussion on here about Al a long time ago. From what I remember the ionic species is not toxic. I always argued that it may be an irritant. IMO it is ok. To lower it the only thing you can do is water changes.

Randy's article on aluminum

 

[Randy Holmes-Farley Verified Community Expert]

My expectation is that it is not high enough to be an issue.

Ionic aluminum is highly irritating to leather corals and will cause them to close up at 0.5 ppm. I showed that myself in the above article.

 

[Hellybell80]

Thanks so much guys for the reassurance . Just wanted to make sure. I'll have to keep searching for what the issue could be.