The "Aquaria" was one of the first DVDs I purchased many years ago.
IMHO it's a quality title and looks quite stunning on a quality display.
The copy I have is quite old now, maybe four/five years, and it's just called "Aquaria" - same company DVD International, Distributed in the UK by DVD Direct.
My DVD is region 2, possibly region free, double sided.
Five choices of Tank - Exotic, Freshwater, Classic, Natural and Coral Reef
Four Choices of Sound Track - Relaxation (5.1), Meditation (5.1), Beach Surf (Dolby Stereo) and Bubbles (Dolby Stereo)
Play Options for each Tank - Full Tank, Close-Ups and Fishographies
Aspect Ratios: Anamorphic, Letterbox and Pan & Scan
FYI - I've also got another similar genre DVD called Funky Oil.
A very basic DVD Screensaver - no menu options.
Just plays a black screen with different size and shape pinkish/red globs of oil that kinda melt and merge with each other, like the lava lamps - quite cool and very similar, if not the same, as the screen saver that you see on the Johnathan Ross chat show.
Hope this helps.
RAMiAM