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Datnioides Polota
Family: Datnioididae.
Order: Perciformes (perch-like).
Class: Actinopterygii (ray-finned fishes).
Common name: Silver Datnoid/Tiger, American Tiger, AT
Max. size: 12 inches/30 cm. D polota slow growing and rarely seen above 12 inches/30 cm in the aquarium.
Environment: Freshwater.
Distribution:
Asia, India to Indonesia and New Guinea.
Temperament: Can be aggressive toward others of the same species, they will usually be OK with other large fish, although this is not always the case.
Species info: This species typically exhibits a silvery-grey coloration with 7 or 8 bars, including a curved bar through eye, four body bars, and two or three tail stripes or bars. Doral spines (total): 12 - 12; Dorsal soft rays (total): 13 - 14; Anal spines: 3; Anal soft rays: 8 9. Pre-dorsal profile strongly concave; Anal fin branched rays 9; colour pattern highly variable, Frank Shafer wrote in the 2005 Aqualog book that the population from the Indian subcontinent is a dull grey-black in base colour, while the southeast Asian population (presumably both mainland and New Guinea populations) have a white/silver background. This species has up to 7 full vertical bars on body, sometimes with 1 to 4 partial bars between full bars (Ref. Fishbase.org), (Frank Schafer. Aqualog) (adapted by Jesse aka itchyophile and myself)
Keeping Datnioides Polota in the aquarium.
Feeding info: Feeding D polota when small and newly introduced to the aquarium can be a challenge and live foods may only be taken. Feeding habits can be changed, and with perseverance foods like prawn, whitebait (silversides), beef heart, earthworms and even pellets can be accepted and a varied diet is always best.
Water info: A temperature range of 24-28°C (75-82°F) and a pH between 7.0-8.0 will suffice. A large amount of filtration and decent water change schedule is a must with these fish as they prefer good water quality.
Tank size: A large tank with plenty open swimming space is required for D polota, although as this fish grows slowly a smaller tank can be used as a grow out. As these fish grow large a 4x2x2 tank is recommended but bigger is always better.