Russian Sturgeon (Acipenser Gueldenstaedtii)
 
Maximum size is 2 meters long.
The lifespan of the Russian Sturgeon is 60+ years.
 
More commonly known as the Diamond Back here in the UK. These are the big silly dogs of the sturgeon world. Extremely placid, very friendly and like human interaction. So therefore easy to train for hand feeding. Large sturgeon with the big round head, so easily identifiable for those admiring your sturgeon collection. They come in a range of colours from dark browns, greens to even whites. If you are beginning your sturgeon hobby, you should start with one of these, amazing fish.
A popular cold water species. Anadromous, dwelling in salt water or freshwater, they like both. Very fast growing with a passive nature makes them excellent company for other garden pond fish such as koi carp and orfe.