Is it a boy or girl? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 06-22-2009, 09:40 AM Thread Starter
Question Is it a boy or girl?

I have 3 bloodfin tetras and wanted to know which were boys and which were girls... and I do not know how to tell the difference, so if someone could help me please!!! Its ok if you dont know:-
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post #2 of 3 Old 06-22-2009, 09:58 AM
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As with many of the characins the mature female is rounder than the male. With this species, Aphyocharax anisitsi, the male is slightly more colourful and has a small hook on the anal fin.

They should be kept in a group of 6 or more as they are a shoaling species (like most tetras) and will always fare better (and be more likely to spawn if that is your desire) when kept in groups. They can live for more than ten years in good conditions.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #3 of 3 Old 06-22-2009, 10:01 AM Thread Starter
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