Identify these eggs?

[yodafett]

Sorry for the picture quality. I can't tell if these are snail eggs or Cory eggs. They all appear a milky white in appearance. Approx 1mm in diameter. On glass side of tank, near the top water line. We are having a slight snail problem, but we also have a female Cory who is looking like she's ready to lay right now, so I'm just trying to decide if I should protect them, or let them disappear/be eaten.

 

[Tropicalfish34]

corydoras

 

[yodafett]

Fantastic, thanks! Although my wife just told me they're gone, so I assume someone ate them... But at least I know what to look for. Thanks again!

PS: LOVE your avatar! I want to have one some day.. When I get rich and have my 300 gal tank...

 

[B_IN_SD]

If you have Cory's spawning you can try 2" X 2" styro squares floating at the surface they will lay on the square and you pull the eggs and styro to another tank.

 

[yodafett]

That's a FANTASTIC idea! I never would have thought they would lay them on Styrofoam! I assume they do the egg-laying "inverted", to quote Top Gun?

And are the eggs very obvious on the Styro? I would think they are hard to see against the white background...

 

[yodafett]

So I woke up this morning to about 40 more eggs scattered around the tank... By the time I got back home from buying a 5 gallon hex to transplant them into, they were all eaten already. (I saw wife's Rosy Barbs finishing off the last cluster). But, I'm getting the 5 gallon up and going so that I'm ready for the next batch when it happens again.

Since the 5 gal is brand spanking new, I assume that pulling the water to fill it from the established tank is ok, until the tank gets it's own supply of microbes, etc? Plus, i have to think the stability of the water levels would be good for the eggs, right?

And is there any special kind of styro to get, or to avoid? I would think colored bricks, like the green or black would make it easier to see the eggs, but I don't' want to add anything bad to the tanks by choosing the "wrong" Styrofoam.

 

[Lusus_Naturae]

If you move some old water and old gravel it with help establish the new tank, if you use the same filter you can also take an old filter pad out and transfer that to the new tank as well. Just make sure to put fish of some type in the new tank to keep the bioload going so the existing load you transfer over doesn't die out.

 

[rpow]

take a part of the media from your main tank and turn it into a sponge filter for the fry, know what im gettin at?

 

[RAWfish]

I also found a large number of Cory eggs last week. I waited a bit too long, but bought one of those breeding nets the next day. I was able to salvage maybe 15-20 eggs by scraping the remaining ones off the glass, but the best bet are the ones that were attached to a heater suction cup... I just remove the suction cup and put it in the net.

After a few days, most of the eggs have turned tan in color, but a couple are very white. I've googled on the topic and I think the tan ones are/were viable. Unfortunately, it also looks like a fungus may be starting to growing on pretty much all of them, which indicates to me that they all may be dead... I just don't know. I will wait longer to see what happens with them, but how long do I wait? If they start looking totally nasty, then I suppose I'll wash them down the drain, but how long do I wait for them to hatch? I'm starting to think that none will live.

BTW, I created a tiny siphon with a drinking straw from my HOB filter into the net to make sure there's a good supply of fresh tank water flowing through rather than start a new tank.

Here's what it all looks like..

 

[RAWfish]

I also found a large number of Cory eggs last week. I waited a bit too long, but bought one of those breeding nets the next day. I was able to salvage maybe 15-20 eggs by scraping the remaining ones off the glass, but the best bet are the ones that were attached to a heater suction cup... I just remove the suction cup and put it in the net.

After a few days, most of the eggs have turned tan in color, but a couple are very white. I've googled on the topic and I think the tan ones are/were viable. Unfortunately, it also looks like a fungus may be starting to growing on pretty much all of them, which indicates to me that they all may be dead... I just don't know. I will wait longer to see what happens with them, but how long do I wait? If they start looking totally nasty, then I suppose I'll wash them down the drain, but how long do I wait for them to hatch? I'm starting to think that none will live.

BTW, I created a tiny siphon with a drinking straw from my HOB filter into the net to make sure there's a good supply of fresh tank water flowing through rather than start a new tank.

Update: If any of the eggs were viable, it was the white ones. All of the tan ones have already fallen off and dissolved. The two white ones are still there and are a fairly bright white. They could possibly still be good.