Help Iding Parasites?

In the last 3 weeks I have lost two guppies. Neither showed extensive signs of disease, just subtle wasting (looking thin and swimming with a "hunch") and then death within a few days. The last guppy death was one week ago. My other two guppies show no signs of illness, and neither do any of my other fish. They are all active, happy, and seem to be eating normally. I noticed tonight though that my platy (Ladybug) has funny looking poop. The best way I can describe is slimy and a little cloudy with solid white chunks. Even after pooping there seems to still be some solid white very subtly protruding from her vent. I'm worried she has an internal parasite that may be what got the guppies but don't want to just dose the tank randomly without a clearer diagnosis. I examined all my other fish and all seem healthy. Ladybug is acting normally though she has seemed to be a little pudgy this past month. No "pineconing" at all though, and definitely not pregnant. Pics attached. Any idea what kind of parasite this might be and how to treat? I have API General Cure, Melafix, and Levamisole, but can make a trip to LFS if something else is needed.

Tank info: 20 gallons, is cycled, has been established since 2016. I have an API Master Liquid Test Kit and all parameters are normal. Temp 77. Moderately planted.

Along with the 1 platy I have:
4 Cory cats
2 neon tetra
2 glow light tetra
3 phantom red tetra
1 dwarf gourami
2 guppy

No recent food or environment changes. Newest fish were 3 months ago, which were guppies, dwarf gourami and platy. No signs of illness til the guppies mentioned above.

 

Is ladybug female?

 

Is ladybug female?

Yes, I'm 99% sure! Here's a better pic of her rear analfin.

 

Ladybug does look like a gravid female. But its that white stringy poop that makes me believe parasites. I would treat the entire tank. A treatment only lasts 5 days and is safe. You only need 1 tsp to treat every 20 gallons of water. General Cure is the exact same medication except it also contains salt. You should go ahead and start treatment asap. Do a partial water change 1st because you can't change the water for the 5 days during treatment. And don't forget to remove the carbon until after treatment.

In the last 3 weeks I have lost two guppies. Neither showed extensive signs of disease, just subtle wasting (looking thin and swimming with a "hunch") and then death within a few days. The last guppy death was one week ago. My other two guppies show no signs of illness, and neither do any of my other fish. They are all active, happy, and seem to be eating normally. I noticed tonight though that my platy (Ladybug) has funny looking poop. The best way I can describe is slimy and a little cloudy with solid white chunks. Even after pooping there seems to still be some solid white very subtly protruding from her vent. I'm worried she has an internal parasite that may be what got the guppies but don't want to just dose the tank randomly without a clearer diagnosis. I examined all my other fish and all seem healthy. Ladybug is acting normally though she has seemed to be a little pudgy this past month. No "pineconing" at all though, and definitely not pregnant. Pics attached. Any idea what kind of parasite this might be and how to treat? I have API General Cure, Melafix, and Levamisole, but can make a trip to LFS if something else is needed.

Tank info: 20 gallons, is cycled, has been established since 2016. I have an API Master Liquid Test Kit and all parameters are normal. Temp 77. Moderately planted.

Along with the 1 platy I have:
4 Cory cats
2 neon tetra
2 glow light tetra
3 phantom red tetra
1 dwarf gourami
2 guppy

No recent food or environment changes. Newest fish were 3 months ago, which were guppies, dwarf gourami and platy. No signs of illness til the guppies mentioned above.View attachment 445502View attachment 445503View attachment 445504

 

I had a similar situation recently. Treated with Prazipro and still lost the most severely affected female platy. She looked similarly bloated, and when she died there was a semi-translucent white thing protruding from her vent. Remaining fish seem to be normal health now (a week later). I waited too long to treat though- it might work out better for you.

Maybe you already know this, but female platy can give birth multiple times from one male encounter and as much as 6 months later. So if you got this platy 3 months ago from an LFS where she was in with males, she may also be pregnant. (In addition to what looks like parasites)