Re: Too many Apistos!

[Mike & Diane Wise <apistowise@bewellnet.com>]

Bob,

I tend to agree with Sal. Not so much with hybrids between gephyra &
pertensis, but that the fry of the 2 species would be hard to tell apart. My
suggestion would be putting pertensis with hippolytae. These 2 species are
sympatric (occur in the same streams) in the middle Rio Negro, but according
to Römer (1998) they are not syntopic (inhabit the same biotope).  A.
pertensis prefers the deeper parts of streams with sun shining on the leaf
litter. A. hippolytae is more generalized, found in deep as well as shallow
water. It is rather rare in most places.  Not only will they inhabit
different microhabitats, if provided, but their fry look much different at
1"/2.5 cm and easy to separate.

For those interested, the reference cited above is excellent and about to
only such study on apistos in the wild.  If you can get a copy (try
Amazon.de), I'd highly recommend it:  Römer, U. 1998. Einige Aspekte der
Mikrohabitatwahl südamerikanischer Zwergbuntbarsche (Teleostei: Cichlidae)
[Some aspects of microhabitat selection among South American dwarf cichlids
(Teleostei: Cichlidae)].  in Greven, Hartmut & Rütiger Riehl, eds.  Verhalten
der Aquarienfische [Behavior of aquarium fishes]. Birgit Schmettkamp Verlag ,
Bornheim.  271 p.  (p. 239-254). I can supply ASG members who have a copy of
the paper with an English translation.

Mike Wise


Bob Raible wrote:

> I overdid it at the PCCA Auction last weekend. A fellow Apisto fancier
> was moving to the other coast and auctioned off his stock. I am now the
> proud owner of:
>    A. sp. panduro
>    A. cacatuoides
>    A. nijsseni
>    A. gephyra
>    A. hippolytae
>    A. pertensis
>
> I am short at least one tank and was wondering if it is possible to
> keep any of these pairs together in the same tank (largest available
> footprint is a 30g long). Are any of these fish likely to be more
> forgiving of the others species than they are of their conspecifics? I
> noticed that gephyra and pertensis are found together in nature. Would
> that mean that they are more likely keep the peace? TIA.
>
> PS: I am in awe of the A. panduro's colors - I had no idea!
>
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