I deffinatelly don't think you should keep the Tetras with goldfish. Tetras are tropical and goldfish are coldwater fish. Even if they've been fine for months, it's like Orion Girl says, the tetras will be defenceless against the first disease that comes along. In this case Ich.
Seeing as there's only 2 tetras she could get herself a small 5gal tank and a tiny filter and heater and she could make them a perfectly happy home. Maybe get them a couple of mates too.
Seeing as there's only 2 tetras she could get herself a small 5gal tank and a tiny filter and heater and she could make them a perfectly happy home. Maybe get them a couple of mates too.
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