Something wrong.

[fishwatcher]

I have a very pregnant guppy (I believe she's close, as she's been hiding a bit and not being socialable at all) and my other fish who are acting strange. I've noticed today that her gills are a little red looking. Since I just recently lost a guppy to gill flukes, I've already medicated the tank today. The others aren't looking bad, but all of them are very listless and not swimming much at all. Not even the 2 cory cats. The only things really moving now are the 2 ADFs. My stats are... Nitrite 0, nitrate 0, ammonia 0, ph 6.4. Temp is 74-76. The only thing I can think of is maybe the pH is too low. I don't know. I don't want to lose them, of course, but I don't know what to do. I did a partial change 2 days ago, and stirred the sand up a bit to keep it from causing bad gases.
What do you think?
Thanks, again, for any and all help.

 

[WILDER]

Sounds like they still have gill flukes you will have to treat again, all the signs are there if they are listless.

 

[fishwatcher]

Ok thank you. I'm glad to know I did right by treating them for that this morning. Hopefully they will all pull through.
Thanks!

 

[WILDER]

Like any parasite they can take time to get rid of, maybe turn temp up abit, good luck.