Lets Talk about my ATI Test

[DrinkinPepsi]

A bit about the tank first

75g with a refugium total gallons is about 100

This test came about because I have now lost about 80% of my Zoas. Hammer is the only thing that still looks great.

I dose about 5ppm per week NO3
This test shows 0 PO4, I usually don't dose that as my Hannah tester usually shows .04.
I do 10-12 gallon change every 2 weeks with Tropic Marine Pro Reef

Hippo Tang
2 Clowns
2 Chromis
Cleaner Shrimp
Coral Beauty Angel

Tank Just turned over a year old. All fish are healthy with no issues.

I would just like some opinions in here that may point to a reason for the mass Zoa die off.
Where did the aluminum come from?

Any other questions on something I may have left out just ask. Just looking to see what others who are smarter think.

Tank Water
RO Water

 

[KrisReef]

Lots of people have reported elevated aluminum when they have used various “bio bricks” which have been found to leach aluminum into their systems?
How much aluminum? What test results found aluminum?
I would guess that the zoas are suffering from a pest that eats zoas, but I don’t know what API test could detect that?
More questions than answers, sorry about your situation.