Bronze Cory Fry Trap?

[Plecc]

Hi all,
 
Can anyone recommend a fry trap suitable for tiny corydoras fry?
 
At the moment I have them in a "Marina floating breeding trap" with a thin layer of fine foam covering the slots in the base.
The foam on the bottom is sill not fine enough, the tiny fry are able to get into the open cells of the foam,
So today i went to 3 LFS's trying to get hold of a finer foam with no luck.
 
But I did pick up a "Marina fish net breeder" basically a fine mesh bag that stretches over a cube shaped plastic frame, that can be hung on the inside of the tank.
The mesh is defiantly fine enough but it looks like the fry can get stuck between the mesh and the plastic frame.
 
How do other people care for these fry? 
 

 

[fluttermoth]

Fry are best raised in a separate tank, in all honesty. You can use a plastic storage box, if you don't want to get another tank. It will need heating and filtering, of course.

 

[PrincessKiara]

^^What Fluttermoth said.
I always separate my baby fish, even if that means they have to live in a jelly jar until they are large enough to avoid being eaten. Of course, that's only when the temperature is warm enough and the fish hardy enough so they won't freeze to death!
If you prefer, however, just add a TON of plants to your tank. Hornwort will do nicely; it will out-compete algae, help purify your water and grow like crazy to form huge masses that will fill your tank and provide excellent cover for the fry. Some will get eaten, but if they're smart most will make it to a safe size.

 

[Lillefishy]

I use a marina floating trap for my cory fry, I use an old pair of tights to cover the slits & put a layer of sand on the bottom & they do just fine until they're big enough to go into a bigger tank

 

[Plecc]

Thanks for the feedback,
 
Luckily I have a few other tanks i can setup to keep them in, none of the filters i have would be suitable but i can easily make one of those basic air driven filters.
 
I thought the fry would be much better off being kept in the original tank to avoid the shock of moving them to different water conditions.
I guess it may work well if you move the eggs to another tank, letting them hatch into the new tank conditions.
But its got to be pretty risky moving them at 48H old?
 
That's a nice idea with the tights and sand, but how do you keep fresh water coming into the trap with the slots on the bottom blocked with sand?
Or do you have the "Marina floating fish hatchery" with the slots in the side? it look's like it would work well with that one.

 

[Lillefishy]

I have the ones with the slots in the sides & position them near the filter outlet so they get some fresh water going through them

 

[PrincessKiara]

If you don't want to shock them, why not fill the new tank with the same water as the old tank, i.e. do a w/c on the tank they're in now and fill the new tank with what you take off?
Just a thought...

 

[Plecc]

So, things are looking promising,
 
I just got home to another fresh spawn

 
I have set them up a 50L with just a big chunk of bogwood, a heater and I built one of these - 
http/www.youtube.com/watch?v=KrLYm-ZDGLw
 
But with a much finer foam.
The tank was filled with some dirty water from another tank and a few blood worms and has been churning away for the last day, unfortunately i didn't have any seeded foam suitable for the diy filter so i'm just trying to dirty it up as quickly a possible.
How often should I add a bit of food?
 
Think I will chuck a few snails in after week to see how they get on.
 
I will have to get one of those traps with slots in the sides, the foam in the bottom of mine is starting to get dirty and wont be very easy to clean, at least the fry have grown enough to not get into the foam. but i don't want the same problem with the next batch.
 
can't wait until the new tank is ready for them!
when the tank is cycled can i add the unhatched eggs as soon as i harvest them from another tank?