Fish not swimming

cait_0523August 1, 2012

I know there are many issues of fish not swimming, but I can't find anything related to my situation.

I bought 3 celestial danios a few weeks ago. One died, so now I just have the two (1 female, 1 male).

In additional to them, I have a coolie loach, 6 shrimp (red fire/yellow), 2 fan shrimp, an albino algae eater, and 3 other fish (similar to neons/cadinals) I also have plenty of real plants in the tank.

The tank is a microtank (about 8 gallons) and was really well balanced, and the water rarely needed to be changed.

Okay, now all that info is out of the way, 1 of the danios has recently started to stay in only one spot of the tank. She sits at the top right corner of the tank and stares out of the tank at a wall. She swims fine when chased, she eats, she's up right, but still stays in the one spot. This has been going on ever since the other danio died. Also, since the 1 danio died, the male chases the female around whenever he gets near her.

Any ideas of what is going on? It took me over a year to find these fish and I'm concerned about losing them.

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What beautiful fish! I can well understand your apprehension over losing any of them but it may have been a question of male rivalry that did the one in!! The males are very aggressive and these types of fish need plenty of space with heavy planting to flourish. Please check the link below for an image and important information on their care. Good luck and defintely recommend getting a much larger tank (15 gallon minimum).

Here is a link that might be useful: Danio margaritatus

    Bookmark   August 2, 2012 at 2:38AM
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sbrow156(Cairns QLD Australia)

They are schooling fish by nature danios and I think perhaps just having two of them (especially male and female) the male is trying to take over the tank and this leads the female to believe she has to stay in a corner all the time. Id advise to get more danios so they can school together and the behavior should stop.

    Bookmark   September 13, 2012 at 8:47PM
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To many fish,1 fish per gallon.

    Bookmark   September 17, 2012 at 5:06PM
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