PlanetCatfish.com

Hello!

My C. sterbai spawned in the community tank today. Sadly most eggs (30 eggs) were eaten by my rummmy nose tetras. As the Corys continued to attach eggs all morning, I managed to protect a couple eggs by covering them with all available objects (thermometer etc.). Is it possible to transfer the eggs into another tank? How do I transfer the eggs? Thanks for your help in advance!

Tobias

I use some airline tube to syphon the eggs from where they are stuck.
To hatch eggs and raise fry i use a plastic tank with holes drilled in it and covered with voile, yes that stuff you use for window dressing, as it allows water through easily but is so fine nothing can gt in or out.
I then place a small powerhead, with air function, flowing straight through the plastic tank so they get good water flow and stops it getting stagnent in there.
DO NOT use a breeding NET type as the eggs get stuck under the inner bars and fungus up.

Gl with the eggs you have left.

Pic of one of the tanks i use to give you some idea.



The slits in the side are covered with voile stuck down with silicon and the sponge filter helps the small fry feed.
The powerhead in this case is behind the fry tank pulling water through the fry tank and an airstone was added to create a more gentle movment inside the fry tank.

I have 100% hatch rate with this set up and my Sterbai lay 100's of eggs at a time.

I use a modified razor blade algae scraper with a small box attached that catches the eggs as they are scraped off. I use a standard mesh breeding trap with a thin plexi-glas bottom and provide circulation with a nearby airstone and this set up yields good hatches and the plexi bottom reains enough food to get them large enough for moving to a proper grow out tank about 2 weeks later.

Hi Coryfan,

Did you read the sticky at the head of this forum?

Ian

Hello!

Thanks for all replies. I chose to remove the eggs with an airtube, which was very easy. The eggs were transfered to a 45 litre tank, which I normally use to condition the water for the community tank. I added an extra aeration (there is a sponge filter anyway) and the corys started hatching today.
Thanks for the help again.

Tobias

First let me say "Congratulations" on the spawn.

Does the tank where you the eggs have a filter from before yuo put the eggs in? Did it have fish in it? If not, you're currently "cycling" the tank... This may not be a problem right now, but fry are even more sensitive to chemicals that may affect the parents, such as ammonia or nitrite.

I'd suggest you add some squeeze out of a filter from another tank, if you haven't done so already. It'll make the water go cloudy for a bit, but it will give you the necessary bacteria to destroy the harmfull stuff that fish produce when they "wee" and "poo".

--
Mats

To prevent the cory eggs from getting fungus, I use a good piece of peat in a filter-net bag. This is placed in the hatching tank and then I squeeze the bag a few times to release some tannin. The bag is then left in with the eggs.
I usually change the water a few times too while waiting for them to hatch.

The day before hatching it is important to change the water back to "normal" and remove the filterbag with the peat. The peat lowers the ph very much, and you probably want the tiny fry to have normal ph and waters parameters just before they hatch. The fry are much more sensitive to water changes after hatching, and it's difficult to change the ph afterwards without risking to kill some fry.

Hey Mona,
Aint that the truth. Sensitive little buggers at the early stages.