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Old 12-20-2022, 11:36 AM   #1
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Is my molly pregnant or sick

My molly looks pregnant for me. Belly was noticed to be squared off 3 days ago. Staying Most of the time at the bottom of the tank and not eating. I removed the male to another tank and now the female is alone in the original tank. But now I see that belly is growing bigger and I'm not sure if this is a pregnancy sign or sickness. Attaching two photos that was taken 3 days ago and today. Any help is appreciated.
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sathish1982 is offline   Reply With Quote
Old 12-20-2022, 07:38 PM   #2
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Hi and welcome to the forum

When livebearers are gravid (pregnant) they usually keep eating.
Did the fish do a stringy white poop before or just after it stopped eating?

The first picture looks normal for a heavily gravid female. The second picture looks unusual and there might be a thread worm sticking out her butt. Common livebearers from Asia are regularly infested with intestinal worms and this can cause them to look gravid but they are simply full of worms. Intestinal worms don't normally stop fish from eating.

Maybe do a big water change and gravel clean on the tank to make sure the water is good. If she hasn't given birth in the next few days, perhaps look at deworming the fish.

Make sure there are lots of plants in the tank to make her feel comfortable.


Deworming Fish
Intestinal Worms like tapeworm and threadworms cause the fish to lose weight, continue eating and swimming normally, and do a stringy white poop. Fish can do this for months and not be too badly affected. In some cases, fish with a bad worm infestation will actually gain weight and get fat and look like a pregnant guppy. This is due to the huge number of worms inside the fish.

Livebearers like guppies, mollies, swordtails & platies are regularly infected with gill flukes and intestinal worms. If the fish are still eating well, then worms is the most likely cause.

You can use Praziquantel to treat tapeworm and gill flukes. And use Levamisole to treat thread/ round worms. If you can't find these medications, look for Flubendazole, which treats both lots of worms.

In the UK look for:
eSHa gdex contains praziquantel that treats tapeworm and gill flukes.
eSHa-ndx contains levamisole and treats thread/ round worms.
NT Labs Anti-fluke and Wormer contains flubendazole.
Kusuri wormer plus (contains flubendazole) - sold mainly for discus, comes as a powder which is quite hard to dose in smaller tanks
Sera nematol (contains emamectin)

Remove carbon from filters before treatment and increase aeration/ surface turbulence to maximise oxygen levels in the water.

You treat the fish once a week for 4 weeks. The first treatment will kill any worms in the fish. The second, third and forth treatments kill any baby worms that hatch from eggs inside the fish's digestive tract.

Treat every fish tank in the house at the same time to prevent cross contamination.

You do a 75% water change and complete gravel clean 24-48 hours after treatment. Clean the filter 24 hours after treatment too.

Do not use the 2 medications together. If you want to treat both medications in a short space of time, use Praziquantel on day one. Do a 75% water change and gravel clean the substrate on day 2 & 3. Treat the tank with Levamisole on day 4 and do a 75% water change and gravel clean on day 5, 6 & 7 and then start with Praziquantel again on day 8.

The water changes will remove most of the medication so you don't overdose the fish the next time you treat them. The gravel cleaning will suck out any worms and eggs that have been expelled by the fish. Repeating the treatment for 3-4 doses at weekly intervals will kill any worms that hatch from eggs. At the end of the treatment you will have healthier fish.
Colin_T is offline   Reply With Quote

ick, molly, pregnant, sick

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