Danios annoying the platys? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 11-02-2011, 03:38 PM Thread Starter
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Danios annoying the platys?

So I currently have 4 platys and I just added 6 gold zebra danios in my 29 gallon. These guys are nuts!! They zip all over the tank, swirl around each other, back and forth, back and forth! But I notice that they are not only chasing each other, they are chasing the platys. I haven't seen any nipping, they just bump at the platys now and then. Usually they chase for a short burst and then off they go to annoy each other again. Is this normal? Are they being aggressive or is it just danio play? They are cute as can be, but I want to make sure they are not harassing the poor platys!! I also plan on adding a dwarf gourami and a school of corycats in the future, would they be too fast moving for a gourami or corys? Thanks!!
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post #2 of 3 Old 11-03-2011, 04:26 PM
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I would not add a gourami. All species are sedate, quiet water fish and should not be combined with active swimmers. Corys will be OK, a group of 5-6 minimum.

As for the effect on the platy, I would monitor this carefully. Platy are fairly quiet fish themselves, and continual harassment from active danio might cause stress. Observing how the platy respond to the danio should help to determine the situation.


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 11-04-2011, 01:05 AM
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It is definitely just the way Danios are, they are complete spazzes! They aren't harassing your other fish but simply doing what they do best, being crazy.

~*How does the little crocodile improve his shining tail,
And pour the waters of the Nile on every golden scale.
How cheerfully he seems to grin,
How neatly spreads his claws,
And welcomes little fishies in,
With gently smiling jaws*~
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