Bad start to the weekend

Well still well and truly learning...woke up Saturday morning to discover my fry had died off over the night. One or two of them were still alive but seemed stunned or something. They looked dead but when I tried removing some of them they wiggled but were headstanding alot and had little or no use of there fins etc...I tested the water and results were fine. Its the new tank possibly altho I filled with water from existing tank and gave it a squeeze of the sponge filter in the existing tank also. Anyhow couldnt take the risk of taking the one or two fry that remained back into the main tank so had to leave them in the new tank,I did a 50% water change but as expected the final 2 or 3 fry passed away during the day also. Im not overly bothered in one sense,I didnt really want the fry but yet went to the effort of getting a small tank nonetheless. Anyhow I am glad I didnt my put my sole guppy fry in with them,I left her in the main tank so glad of that as she was the only guppy fry that survived from an earlier batch of fry (Or at least I didnt find others ?)

So at least it nothing happened to my main tank or I would of been majorly pi***d off but anyhow. So not the best start to my birthday yesterday but on the plus side at least I have an isolation tank now just in case (altho have to clean it out now again), and on the plus side I can go back to planning for the 160 litre I have yet to set up.
Thanks to all who helped me out with the questions I had on the fry over the past week or two. And finally I do have 6 molly fry that are now a month and a half old in the main tank as well as a guppy fry of similar age..Its all good I guess. Setbacks occur but lots to look ahead to.
Gavin

Hi Fishowner,

I did manage to kill a few batches of fry too ! and to this day, I am not sure what went wrong (except for releasing them too early in the tank once!).

It's hard to know why it happens sometimes, especially if your parameters were ok.

Maybe they were a little premature and just couldn't make it ? Maybe they didn't like the change ? maybe the temperature was too high/low/up and down ? Maybe they didn't like the food you gave them? ...
There might be other reasons. Maybe some other forum-ers can help you further.

I am sure you will get another batch soon ... keep the new tank going with one or two fish (not too many as it's only 15l) in it so that the beneficial bacteria doesn't die off, with frequent water changes.

It gets better as time goes by!

I hope this helps.
Valerie

PS - Happy Belated Birthday!!