The ink is Noodler's Blue Ghost ink. The pen is (I believe) a Noodler's Charlie (currently inked with Diamine Inkvent 2024 Good Tidings).
[url=https://social.jlamothe.net/photos/me/image/7626895402680ee6f8a0c95091123826][img=
]The aforementioned ink and pen. The ink is a large bottle with a translucent yellow-ish ink (which when used is only visible under UV light). The pen is a slim eye dropper pen. The pen is uncapped and placed with the nib end propped up on the cap to be all fancy looking and stuff.[/img][/url]