Pristella Tetra in 20 gallon. - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 6 Old 09-07-2013, 07:46 AM Thread Starter
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Question Pristella Tetra in 20 gallon.

Just curious how many Pristella Tetra can live comfortably in a 20 gallon tall? I have tried researching it but cannot seem to find answers.
Thanks! :)

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post #2 of 6 Old 09-07-2013, 08:50 AM
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At 1-fish-per-gallon, you're looking at 11, but with good filtration & lots of live plants, you could have as many as 20, (more if you used a large sump), since they are healthier in a larger group, and provided that your planting leaves them at least 1 long space to swim. And, of course that would be tetras only, with snails for clean up. I love big schools of tetras! They can put me in a trance state of relaxation; add a little trance music... But, you should really add fish in small groups, ( say 3-4 at a time, waiting a couple of weeks between additions), as your nitrogen cycle will have to adjust to each new bio-load. I would go for 15, with good filtration & live plants, (lots), if you don't have a 2nd tank set up or you're not running a sump. To go higher, you would do best to have a 2nd tank & increase 2 at a time, (maximum 20), watching for ammonia/nitrite spikes that don't go away in 24 hours --- means you have too many fish & need to put the last addition in your 2nd tank. I don't believe in losing fish, so I play very conservative when it comes to stocking limits.
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post #3 of 6 Old 09-07-2013, 09:12 AM
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Planting

Planting suggestions for tetra school in tall tank:
plantingSuggestion1.jpg

plantingSuggestion2.jpg
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post #4 of 6 Old 09-07-2013, 09:20 AM
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Quote:
Originally Posted by Keleborn View Post
At 1-fish-per-gallon, you're looking at 11, but with good filtration & lots of live plants, you could have as many as 20, (more if you used a large sump), since they are healthier in a larger group, and provided that your planting leaves them at least 1 long space to swim. And, of course that would be tetras only, with snails for clean up. I love big schools of tetras! They can put me in a trance state of relaxation; add a little trance music... But, you should really add fish in small groups, ( say 3-4 at a time, waiting a couple of weeks between additions), as your nitrogen cycle will have to adjust to each new bio-load. I would go for 15, with good filtration & live plants, (lots), if you don't have a 2nd tank set up or you're not running a sump. To go higher, you would do best to have a 2nd tank & increase 2 at a time, (maximum 20), watching for ammonia/nitrite spikes that don't go away in 24 hours --- means you have too many fish & need to put the last addition in your 2nd tank. I don't believe in losing fish, so I play very conservative when it comes to stocking limits.
Did I say "1-fish-per-gallon"? Too early this morning --- that's 1"-per-gallon!
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post #5 of 6 Old 09-07-2013, 04:29 PM Thread Starter
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Well unfortunately I cannot have live plants. They will be going in with a marbled crayfish and she destroys live plants. As for stocking though the plan is to have the cray and pristellas and nothing else. :)
And I already own 6 pristella tetras. They are in a different tank at the moment and are living with a red claw crayfish in there so I know they work with crayfish.

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post #6 of 6 Old 09-07-2013, 05:53 PM
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You could do floating plants, which in my experience makes a lot of tetras more comfortable anyway.
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-Kristen's tanks:

14g Tall:
Planted, eco-complete, Red Cherry Shrimp

16g Aqueon Bowfront:
Planted, eco-complete, 8 Ember tetras, 7 Green neon tetras, 6 Harlequin Rasboras

36 Aqueon Bowfront: Planted, sand, 10 Julii cories, 8 Zebra Danios
7 Cherry Barbs, Asst snails & Ghost shrimp
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