Hey guys.
I’ve noticed this white splotch on my purple tang recently but did not think much of it. Recently my powder blue tang died, i’m unsure of the cause, but I remembered that the powder blue tang had a similar white splotch a week or two prior to him dying.
I’ve attached photos of both the purple tang (with white splotch) and the powder blue the day before he died.
This all began when I started using a new T5 lighting unit. At the same time I also started dosing the tank to set it up for coral (Potassium and nitrate remover, Aragonite A, B and C for calcium, magnesium and alkalinity)
![AB4888CB-6370-4B76-B87D-4BA422B92DE0.jpeg AB4888CB-6370-4B76-B87D-4BA422B92DE0.jpeg](https://test.reef2reef.com/data/attachments/2090/2090867-8c4fcbe54e1b2bfcfd32a931cd649df2.jpg)
I’ve noticed this white splotch on my purple tang recently but did not think much of it. Recently my powder blue tang died, i’m unsure of the cause, but I remembered that the powder blue tang had a similar white splotch a week or two prior to him dying.
I’ve attached photos of both the purple tang (with white splotch) and the powder blue the day before he died.
This all began when I started using a new T5 lighting unit. At the same time I also started dosing the tank to set it up for coral (Potassium and nitrate remover, Aragonite A, B and C for calcium, magnesium and alkalinity)
![81782B69-B4AE-4785-B7BD-E1FF4047F6F3.jpeg 81782B69-B4AE-4785-B7BD-E1FF4047F6F3.jpeg](https://test.reef2reef.com/data/attachments/2090/2090858-7292e4c4cf7294114826b27f55b364f0.jpg)
![7831E2BF-6ADA-4779-BA3E-9FB3B60A18C3.jpeg 7831E2BF-6ADA-4779-BA3E-9FB3B60A18C3.jpeg](https://test.reef2reef.com/data/attachments/2090/2090859-4826dac88279f2faae947911d9298cdf.jpg)
![51D27604-6E95-4FB2-AE32-6CBAF713473A.jpeg 51D27604-6E95-4FB2-AE32-6CBAF713473A.jpeg](https://test.reef2reef.com/data/attachments/2090/2090860-87ceecf9276fdb01de501d19b0312c7b.jpg)
![BF6151CB-149C-4916-B41B-AF64598C9885.jpeg BF6151CB-149C-4916-B41B-AF64598C9885.jpeg](https://test.reef2reef.com/data/attachments/2090/2090861-a7e14704fc189a152e143969dbfbd349.jpg)
![2A512528-FA01-4F4B-9A74-AC7620A6E44E.jpeg 2A512528-FA01-4F4B-9A74-AC7620A6E44E.jpeg](https://test.reef2reef.com/data/attachments/2090/2090863-675e8fc0fa6f42aba4107817e2c837b0.jpg)
![679F430A-75A0-4B54-AE30-4ED0BD57F1CD.jpeg 679F430A-75A0-4B54-AE30-4ED0BD57F1CD.jpeg](https://test.reef2reef.com/data/attachments/2090/2090864-c05beb71a9ff19967fac2a56af90b5f1.jpg)
![BBF5DCDC-DE75-4CCF-8F53-49AE0EB124E2.jpeg BBF5DCDC-DE75-4CCF-8F53-49AE0EB124E2.jpeg](https://test.reef2reef.com/data/attachments/2090/2090865-211975e1ab1f860b6fe9c75308fc8270.jpg)
![704D501B-148F-4D5E-8B90-9D3C29993CA6.jpeg 704D501B-148F-4D5E-8B90-9D3C29993CA6.jpeg](https://test.reef2reef.com/data/attachments/2090/2090866-cf7fda403ecb1ead8615e1ffb8426b5b.jpg)
![AB4888CB-6370-4B76-B87D-4BA422B92DE0.jpeg AB4888CB-6370-4B76-B87D-4BA422B92DE0.jpeg](https://test.reef2reef.com/data/attachments/2090/2090867-8c4fcbe54e1b2bfcfd32a931cd649df2.jpg)