how many fish - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 05-03-2011, 10:42 AM Thread Starter
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how many fish

Hello, I have been looking at my tank and feel I could add a few more fish. I was going to add 4 neons and 3 head n' tail tetras, what do you think?

20 long planted
8 neons
3 head n' tail lights
2 corydoras
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post #2 of 4 Old 05-03-2011, 11:03 AM
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Instead of adding more neons, I would add the head and tail light tetra, and another cory. Don't add them all at once though, since you're getting pretty close to your max bioload.

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post #3 of 4 Old 05-03-2011, 11:25 AM Thread Starter
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Thanks for the help, I will most likely pick up 3 head n tails since my LFS has a buy 2 get 1 free deal and then get the corydora another time.
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post #4 of 4 Old 05-03-2011, 12:12 PM
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That will work fine. Later with the additional cory, I would get 2-3 more. A group of 5 is good, and you are OK in a 20g long with the other fish. But you will then be at max. The corys can be same species of mixed, if you have 2 of one species now. you could add 2-3 more of the same, or a different species, but if different make sure the 2-3 new are the same species themselves.


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 youíre going to take it under your wing then youíre 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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