Platys Dying!

[bam_emma]

I recently got some new fish,
And this morning i woke up to find my baby platy which was 8 weeks old was dead,
Also one of my new platys was dead when i came home from college today.
And another one is acting weird and looks like its about to go any min, its staying right at the bottom of the tank at the back and only moves when another one nudges it.
I got my water checked when i got them and it was perfect!!
Whats wrong with them!!
I was sooo sad to see the baby one die, it was born in my tank by one of my old platys!!

 

[chesterscot]

elo you said your water was fine when you got the fish but have you checked your water parameters since fish started diein

 

[bam_emma]

Its only since today they have an i dont have a water kit yet!

 

[chesterscot]

if i where you id get my water tested at your lfs as soon as you can. Also i would be tempted to do a water change just in case but i might be wrong someone with more knoweledge will be able to help you more hope that helps
scot