A few time ago it was revealed by Ravenmor Fox, another video “Aquaria ‘Tank talk’ Iron sand aftermath part II”.
As informed in the youtube page by Ravenmor Fox: “#goldfish #pets
Related blog posts will actually be coming including still pictures and info steps of how I removed the ‘Iron’ Black sand and the bacteria bloom it caused
Part I https://youtu.be/pdDMnaMvzew%0A#goldfish
By Witch and Druid of the Old ways
You can check the video below: