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Danios

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  1. Marbles (Was: Re: [F] Do I have a pregnant fish?)
    by Dmerrill-at-bnr.ca (Dana Merrill) (Tue, 15 Mar 1994)
  2. Marbles (Was: Re: [F] Do I have a pregnant fish?)
    by oleg-at-netcom.com (Oleg Kiselev) (Wed, 16 Mar 1994)

Marbles (Was: Re: [F] Do I have a pregnant fish?)

by Dmerrill-at-bnr.ca (Dana Merrill)
Date: Tue, 15 Mar 1994

In article <CMpJ3v.8yo-at-nrtpa22.bnr.ca>, kcwong-at-bnr.ca (K.C. Wong) wrote:
> 
> In article <1994Mar14.233153.18266-at-bmers95.bnr.ca>, bhaskar-at-brtph181.bnr.ca (Shaji Bhaskar) writes:
> |> In article <94073.135105LLB-at-psuvm.psu.edu> Larry Bunge <LLB-at-psuvm.psu.edu> writes:
> |> 
> |> >Oleg said it all. I just want to add something about the method I used
> |> >to keep Danios from eating their eggs. I used bare 20g long tanks which
> |> >had a "substrate" of marbles (about 3 deep). Ripe females and males were
> |> >brought together in these tanks and the eggs which are non-adhesive
> |> >would fall out of their reach between the marbles.
> |> 
> |> Lots of books mention this method, but where can you find cheap marbles?
> |> At the going rate here, I would have to invest $20 before I have enough
> |> for a 10 gallon tank.
> |> 
> |> Shaji
> |> -- 
> |> ----------------------------------------------------------------------------
> |> Shaji Bhaskar                                             bhaskar-at-bnr.ca
> |> BNR, Research Triangle Park, NC 27709, USA                (919) 991 7125
> 
> 
> Shaji,
> 
> There are better and less expensive alternatives to save eggs from
> egg-scatters. Fine-leaf plants and Java-moss (you should have no problem
> getting plants), Spanish-moss (available from Lowe for $1.50 a bag) and 
> spawning mop ($1 at any store, use natural color).
> 
> Java-moss is the best because it holds tons of infusoria for the newly
> hatched fry to eat.
> 
> Good luck.
> 
> -- KC
> Java-moss, 

My solution is to go to the hardware store and get some of the "plastic"
screen used to replace the screen in window screens, doors etc.  (Not the
metal stuff - I think it is actually fiberglass or something, but I have
used it successfully in the fish tank). Cut a piece a few inches larger
than the surface of the tank and fold the edges up to make a tray.  You can
sew the corners up to make it hold its shape.  Now fit this into the tank -
above the bottom of the tank.  Putting the screen just a couple of inches
below the water's surface helps to save some eggs since the shallow water
doesn't give the fish enough time to catch the eggs before they fall
through the screen.  Easy to get the breeders out too, just lift out the
screen tray!



==================================================================
Dana Merrill                                Bell Northern Research
DMerrill-at-BNR.CA                         Research Triangle Park, NC
==================================================================

Marbles (Was: Re: [F] Do I have a pregnant fish?)

by oleg-at-netcom.com (Oleg Kiselev)
Date: Wed, 16 Mar 1994

In article <1994Mar14.233153.18266-at-bmers95.bnr.ca> bhaskar-at-brtph181.bnr.ca (Shaji Bhaskar) writes:
>Lots of books mention this method, but where can you find cheap marbles?

You can try using something far more mundane: large (1/2"+) gravel.  

Another method I have read about is using a grill made of glass rods or
stainless steel mesh with 1/8-1/4" holes (is that something like
#8-#4?).  Suspend the mesh 1" or so above the bottom of the tank (prop
it up by plastic supports or something).  This method should have an
addef benefit of letting you see if there are any eggs under the grill
and if the fish should be removed from the spawning tank.  I have never
tried this because I have never seen a cheap stainless steel mesh or
glass rods.


-- 
Oleg Kiselev at home                    ...use the header to find the path

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