What tuning does the Acacia Strain play in?

Apparently the Acacia Strain plays in Drop G#? Holy shiiiiit. I generally play in C standard if I play anything other than standard.

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In respect to this, what guitars do Acacia Strain use?

Balaguer Guitars has teamed up with The Acacia Strain’s Devin Shidaker to announce the Tartarus DS7 and DS8. Seven- and eight-string guitars respectively, the DS7 and DS8 are new takes on the company’s existing Tartarus electric guitar model, which launched around Halloween last year.

In this way, what is drop B tuning on guitar? What is Drop B Tuning? Drop B tuning requires you to tune down or “drop” your low E string two-and-a-half steps to B. However, this tuning has two variations. In one version, you only lower your sixth string, leaving the rest of your strings in standard tuning.

Beside above, what kind of metal is Acacia Strain?