Keeping Fry In A Net?

IzzysGuppies

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Hi all,
I was wondering if fry can be brought up in one of those breeding nets in the main tank?
I have (well my daughter has) a 60l planted tank with 2 male guppies, 4 dwarf neon rainbows (3 female 1 male) 6 glowlight tetras, 2 dwarf cories, one panda cory and one pitbul plec.
I have 8 fry swimming around in one of these nets in the main tank with a bit of plant in there and a bit of java moss. I think they are either rainbow or tetra fry (had hoped that they may be dwarf cory but I don't suppose they swim around in the top half of the water?).
The fry must be around 3 weeks old and although I had seen the odd egg, the actual fry were quite a surprise. The fry are about 2mm long with 2-2.5mm tails, one is a bit smaller and may be around a week younger.

I do have q/t tank, but it is only about 5 litres and has no heater (whe in use it has to make do with towels around it at night to keep it warm), though I have now got it so that a bubble stone can go in it, as the filter I have used in it in the past is rather strong and although I kind of modify the flow when it is in there to treat fish, I think it would still be too much for the fry. Also as I cleaned the tank today I found quite a few eggs in the java moss tied to an ornament, so I have that in there at the moment hoping for some more little dudes, not that I'm sure what to do with them if I get any more to hatch as the first batch of fry may be able to eat them soon?

The tank has two filters running in it at the moment (another story) so I have repositioned one of them so it catches the corner of the net to get some flow going in the net without blasting the fry around! which my first attempt seemed to do! They are being fed of Hikari first bites which is what I could get my hands on the day I found them, and I try and fish out any floating uneaten food before adding more, which I do 2ce a day.

So really my main questions are, can I raise the fry in the net until they are big enough to be in with the rest of the fish, and how big do they need to be - not to be eaten by a guppy, which I think have the bigest mouths in there.

Many thanks,
Lisa (Izzy's mum)
 
Ca't really keep them in a space like that for that long, they need space to grow or they will grow to be deformed
 
I always keep the fry in the breeding net for at least 3-4 weeks before releasing them in the main tank.
Even if they are not eaten by bigger fish they have little resources in finding food.
A breeding net will assure that the fry food is consumed only by the fry.
I have had several generations of corydoras panda fry which didn’t survive if they were released sooner than 6-8 weeks.
 
Thanks for the replies.
The net is 17cm x 13cm and about 15cm deep so I was hoping they could stay in there a while yet, I am not imagining until they are fully grown, just able to hold their own. I found another fry in the q/t tank today and the temperature is only 22 degrees so I would worry about that to keep the fry in there for a long period, esp with no filter. It has extra towels round it tonight in the hope it will stay a little warmer.
What are any other problems I may encounter with a breeding net? I do feel a little better now there is a tiny amount of flow moving through it, but don't want to take too many risks either.

Many thanks,
Lisa
 
Hi all, I thought i'd update and say that I found a new fry in the q/t tank yesterday and put it in the net with the others, but I found 2 more today, so as an experiment I shall leave them in the q/t tank. If anyone thinks they'd be better off with the others in the net, please let me know, as I am still concerned about lack of filtration and heat though it now has extra towels and seemed roughly a degree warmer due to this today. q/t tank still has a bit of a plant and the java moss in case any more eggs hatch, and I have found and added an egg both today and yesterday. It would be great to hear experiences from anyone else using a breeding net for raising fry.
Many thanks again,
Lisa.
 

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