Ich and Pregnancy in guppies?

I keep a 10 gallon tank with 4 guppies, 3 females and 1 male, 4 neon tetras and 2 black tetras. I recently noticed a problem with what appears to be ich, some of the fish have small white spots predominantly on their fins but some on their bodies aswell and some were thrashing their bodies off the gravel. I began dosing for this using Interpet Aquarium Treatment #6. I then began noticing some of the fish had become darkened around the body and mouth as if by ammonia burning. Having tested my water levels for Ammonia, Nitrate, Nitrite and pH and finding them ok I don’t know what’s causing this. Also 1 of the female guppies appears to be heavily pregnant and her spine has become curved towards the end of her body, is this natural in the latter stages of pregnancy or is it a broken back from thrashing off the bottom? Any help would be greatly appreciated.
According to my test kits my pH is neutral, and ammomia is nil-trace. Your help has been fantastic MM and is greatly appreciated. My next course of action if would seem would be to try and restore the water to good condition by a 50% change, replacement of the carbon filter and then treating the ick through salt and heat? Does this seem like a good move?, can the tetras survive in salt water? I’m not overly worried about losing the batch of fry as I have no where to keep them and intended on giving them to my local fish shop anyways. I also can’t find any information on the medication which isn’t good. Also given the poor state my water my be in, would it be wise to redose it with a filter-boosting formula to re-establish the possibly damaged bacteria after the water change?.
Again, many thanks.

can folic acid pills give false pregnancy signs?

i have sore boobs, havent missed my period yet due in 6 days.
i have some symptoms,

but advice said to take folic acid and b6 and evening primrose oil before concieving

can those give false signs
its too early to test. but i have been taking folic acid and like natural stuff – tea etc.

Can i get accurate results?

I took a pregnancy test a couple of years ago and got a false positive. Does this have something to do with my natural hormones or was something wrong with the PT? If i take another one do you think i will get accurate results?

Early m/c in September, now 8 dpo and a + test?

Just wondering if anyone had any insight as to whether or not hcG could still be in your system almost 4 weeks out from a natural m/c (I was 6w4d along when I lost the pregnancy – 4 weeks tomorrow from when it all happened)?

Reason why I ask is because I’ve had an urge to take an hpt and picked one up from the $ store this afternoon. I held my urine for around 4 hours and took a test. There is a faint line. The problem is, I didn’t test out the hcG from my last pregnancy to see when it was all gone.

Aunt flow is due in 4 days and I have my first follow up appointment for the m/c tomorrow morning. Not sure if my OBGyn can tell anything tomorrow or not; but I’m going to ask. I am picking up a better quality test tomorrow and using it over the weekend just to see.

Yes, we are TTC.
No, I passed the whole thing 4 days after the m/c started so I’m positive that I passed everything.

I thought your body wouldn’t ovulate if there was still hcG in your system; and I’m temping and charting and have clearly ovulated. Not to mention that I’ve had the same temp the past 3 days in a row…

I’m hoping that my OBGyn can give me some insight tomorrow.

Thanks for the replies!