This is a Arcadia Marine Blue FMB 18 Watt T8 2ft - 24" - 600mm Fluorescent Tube and its somehow it has gone Mercury Starved over the last 8 weeks its started to dim a little each day, its a type of EOL (end of life) for many newer low Mercury Fluorescent Tubes. Still pulls 20 watts with ballast but is dim (only night light bright). Next to a normal Fluorescent seems to be not working. Not sure if this tube will go pink or purple before it burns out. Will try and find out, might take some time.
Starters in video a Thorn 4 - 65 watt argon starter and a Daks 4 - 22 watt neon starter.