"Within six months of its appearance in the aquarium trade, the species had become so rare that collectors were obtaining only a "few dozen fish per day". Whilst some aquarists have managed to breed the fish successfully, almost all the fishes currently offered for sale are wild-caught. British fishkeeping magazine Practical Fishkeeping is currently asking that only aquarists prepared to breed the fish should buy any fishes they see for sale, to reduce pressure on the wild stocks by diminishing the demand for them in the UK[. As the species seems adapted to living in and colonizing small, possibly ephemeral pools, it seems not very well able to withstand prolonged and intense exploitation - if the stock in all pools at one location is entirely fished off, it is unclear in how far the fish would be able to recolonize them. On the other hand, if only part of a local subpopulation is removed, it seems likely that pools from which all Celestial Pearl Danios have been removed will be recolonized with a healthy population again after one year or so."
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