Immigrant Danio Fry

[Doogz]

Now that our main tank is settled my girlfriend decided she wanted a smaller tank of her own.

Seeing no harm we added a bucket of tank water and rinsed out filter media in to her tank to help with the fish less cycle. This was a week ago. Today she redosed to 4ppm. A few hours later she noticed several danio fry swimming about I told her with the ammonia being so high they have no chance of surviving

She did a water change to get the ammonia down to 1ppm. Is there any chance the fry will live if we get it down to 0?

Looks like there's a load more eggs in the tank, obviously the eggs got in either by the filter rinse or through the sand vac.

My girlfriend is devastated, poor lass!

 

[tmh0921]

When I set up my first tank years ago, I did a fish in cycle (didnt know better then). I had fry make it through a cycle where ammonia exceeded 8ppm, so there is a chance they'll make it.

Edited to add that I was doing multiple massive water changes daily during that cycle once I learned what a horrible mistake I had made

 

[CrazyAirborne]

theres always a chance! if any bacteria made it into her tank, that will help!

also, if you have a fully cycled, mature tank, you could take up to 1/3 of your filter media out, and put it in her filter to pretty much insta-cylce hers.

that would be your best bet to survival of fry.

also, thats how people with multiple tanks can start up a new one anytime, just use some mature media...