Questions about corydoras

[fireman5214]

Hello all, I have a few questions about some corydoras that have spawned yesterday.

History of them- 55gallon amazon tank with rummynose tetras and discus kept at 84-85 degrees. There are 8 weitzmani corydoras in the tank. This is their first spawn, about 20 eggs, and between looking up info, I was only available to salvage about 8 before they ate them.

What little info I found on them yesterday, was to put them in a small container with water and air. So I put an airstone in an old container with about 2" of water from the tank. Today I looked in and I had one fry already ( i read 4 days for them to hatch), I just looked now and have 2 fry. I added about another inch of fresh water from the tank.

Questions.....

Should I continue to add a little fresh water from the tank daily?

Should I put HIKARI FIRST BITES in for them to eat? Do they eat the rest of the egg sack?

Any good source for raising Weitzmani Corydoras?, or do all corydora fry get raised about the same? I found info on jullie corys but was not sure if that was ok to go off of?

Any other information I need to know?

I have a "livebearer" breeder tank that goes inside the main tank. Can I put them in there when I know 100% they are to big to fit through the slits on the side of it?

Any help would be greatly appreciated as I found out that in my 29 gallon tank I had eggs layed which I thought were from my tetras until yesterday. There is only a julie cory and emerald green cory in there. Is it ok for strains to cross breed like that?

THANK YOU in advance.

 

[fireman5214]

one other question I forgot to ask... whats the best way to remove the eggs? I have heard rolling them with your finger but wouldnt that smash them? Does anyone use a small razor blade or spatula? Thank-you

 

[oliverkangku]

Corydoras are catfishes generally belonging to the family callichthydae. Many corydoras catfishes exhibit a courtship a peculiar behaviour during which the females will suck the sperms from the genitals of the males which then passes through the intestine to the eggs which then gets inseminated. Females generally produce about 15-20 eggs in clustures which are adhesive in nature.
Looking in to your case, if the eggs are attached to a substrata then please take out all the fish from the tank and keep it in another container leaving the egg clustures alone. Maintain a constant temperature of about 28 degree Celsius using a thermostat but the temperature should not fall below 20 degree celsius and above 30 degree celcius.
Maximise you aeration facility to full by slowly allowing the egg clusture to sway.
For the safety of the eggs from fungal infestation use malachite green (2ppm) or Methylene blue (2 ppm).


May you succeed

Oliver