Fishkeeping - Caresheets - Sturgeon (Siberian Sturgeon, Stellate Sturgeon, Sterlet, Diamond Stergeon, Albino Sturgeon) - Acipenser baerii, Acipenser stellatus, Acipenser ruthenus

Sturgeon
Alternative Name(s): Siberian Sturgeon, Stellate Sturgeon, Sterlet, Diamond Stergeon, Albino Sturgeon
Scientific Name(s): Acipenser baerii, Acipenser stellatus, Acipenser ruthenus
Category: Pond
Difficulty:
Maximum Size: 200cms
Minimum Tank Volume: 0 litres
Minimum Tank Size: at least 3000 Gallons
Water Temperature Range: 10-22°C
Water pH Range: 7.0-0.0
Water Hardness Range: 0-0 dGH

General Information:	Huge fish, major purchasing error for most pondkeepers, all are lake fish, not pond fish. General trade in the UK should probably face a ban. Much abused fish due to total underestimation of space required and shallow water too warm. Avoid like the plague, smaller sterlets just about suitable.
Tank Requirements:	See Minimum Tank Volume and Minimum Tank Size above
Diet Requirements:	Sturgeon can not digest plant proteins, so their food needs a high fish meal / shrimp meal content, avoid foods made from wheat as the fish may well eat it but it will not do them any good.
Compatibility:	Highly limited, heavily armoured with hooks spines and ridges, and prone to panic. Large specimens known to disembowel koi and injure keepers when panicking. Many problems associated with sheer size.
Recommendations:	Sturgeon needs proper food. Well oxygenated water, Use an air pump through out the summer months to back up the main pump. Filtered water.
Common Problems:	Sturgeon trapped in aquatic plants and algal mats, sustain injury and exhaustion, constant swimmer ,cant reverse.Stereotypical behaviour and abrasion, fungus and bacterial infections in summer heat.
Similar Species:	Families acipenser, huso, and scaphirhynchus. None with a length of over 1 metre come recommended, some reach 6 metres. Given migratory habits and requirements, ownership is foolish and unrealistic.
Sexing:	No external differences.
Breeding:	Sexual maturity is reached quite late, most males average from 18 - 24 years at their first spawning and females from 24 - 28 years. spawning season is from May to June.

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