It sports a bright golden background color and dark, erratic blotches. And, it has a somewhat flattened head with little, beady eyes.
Firstly, it can easily exceed a couple of feet in length. Imperial flower loach ( Leptobotia elongata) It should be noted that the term rare is here used to indicate rarity in the trade, not necessarily in the wild one should always avoid wild specimens of threatened or endangered species. Rarity may be defined by very narrow (albeit totally absolute) criteria for example, while most koi retail for $10 to $20, exceptionally well-bred individuals often sell for tens of thousands of dollars at auction. The following is a mere sampling of some notable, rare freshwater aquarium fishes. Of course, demand for some rare species is restricted to a mere handful of specialists, and accordingly commands only a slightly higher price (certain killifishes, rasboras, etc.). In point of fact, some of these freshwater rarities are among the most difficult and costly to obtain in the entire ornamental fish trade. While it seems that there are countless “holy grail” saltwater species, the freshwater side of the hobby has its own share of unusual, much sought after fishes.
An increasing demand for rare fish has coincided with this trend. Despite the occasional economic downturn, fishkeeping (and indeed the aquarium industry) has steadily grown over the last half-century.
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