John q
Member
Having lost 2 gourami in the last 6 months I'm somewhat nervous about adding 'replacement' fish in case anything gets passed on to my remaining residents.
Echo advice regards Iridovirus, especially concerning dwarf gourami.
The best defence against passing diseases to current tank residents is time; as in quarantine for a couple of weeks and see if anything shows up before introducing to main tank.
Getting stock from reputable dealers/stores that have already quarantined and kept them in good conditions will help mitigate the risk somewhat, but even then there's no guarantees.
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