Schooling fish behavior questions. - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 05-17-2014, 08:41 PM Thread Starter
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Schooling fish behavior questions.

Hey guys I put 6 Whit Cloud Mountain Minnows in my 20 gallon planted tank.
I put them in and just as my dearly departed 7 Zebra Danios did, 4 are schooling and the others are just hiding somewhere. Why does this always happen?
THANKS!
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post #2 of 4 (permalink) Old 05-17-2014, 10:34 PM
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I had about 15 white clouds in a 55 once. They didn't really school at all. They did reproduce like crazy though.

29 gallon cube with an angelfish named Angelo and 29 gallon with cories waiting for some shrimp friends.
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post #3 of 4 (permalink) Old 05-18-2014, 01:17 AM
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I personally believe that fish schooling in a 20g is sort of difficult. In larger tanks, maybe even a 29g, fish have more room to move through the tank and get away from each other and likely stay closer because of that. In a 20g, maybe less in a 20 long, fish can move from one end of the other without losing sight of each other and stay loser. Just my observations of some fish.

The schooling is definitely more noticeable in tanks like 75+.

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post #4 of 4 (permalink) Old 05-18-2014, 05:28 AM
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One needs to remember that schooling behavior is a defensive mechanism, often to avoid predation. To encourage schooling behavior, the fish need to experience a threat stimuli. Having a predator in the tank will do this, or shadows moving from overhead.
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