Female guppy has red spots on body not eating

[Fisheroni]

TLDR: guppy has red spots on body and is acting sick

Hi all,

My female guppy has red spots on her body and hasn’t been eating for the last few days. She recently gave birth three days ago and has been acting very sickly since then. Last night she developed red spots on her body and has become very pale. She isn’t swimming strongly and has been hiding in the corners of the tank and in plants. I put her in the breeding box this morning to isolate her because my beta bit her tail this morning. They have been living together for about 6 months no issue until she became sickly. I don’t know what sickness she has and can’t find anything online please help!

20 gallon tank
2 female guppies
1 male endler guppy
5 danios
3 Emerald cory cats
1 female betta
1 male balloon molly
2 apple snails
Many live plants

 

[Fisheroni]

Photo of my guppy with the red spots

 

[JuiceBox52]

byron can go more in detail about the stocking.
What is your GH?
Cory cats should be in groups of at least 6 with more being preferable.
Guppies, endlers and mollies are hard water fish, so are not compatible with the other fish mentioned here.
Danios are super active fish and will stress out more calm fish like the betta.
Bettas should never be housed with community fish, while it may "work" for awhile they are likely to suddenly snap and go all out vicious with the other fish.
Byron can explain the chemical side of stressed fish and compatibility

 

[Fisheroni]

Ph 7.0
Ammonia .25ppm
Nitrite 0
Nitrate 5ppm

Any idea what is wrong with my guppy?

Ammonia and nitrate are higher than they should be so I’m going to do a water change now.

 

[JuiceBox52]

Ph 7.0
Ammonia .25ppm
Nitrite 0
Nitrate 5ppm

Any idea what is wrong with my guppy?

Ammonia and nitrate are higher than they should be so I’m going to do a water change now.

Do 75 percent water change every day for a few days to fix the ammonia/nitrate problem

 

[Retired Viking]

Like @JuiceBox52 said please do a 75 % water change right away. Vacuum the gravel also. The redness on the gills indicates possible ammonia poisoning which is confirmed by you water test. Ammonia should be at 0.

 

[Retired Viking]

The red spots are also probably ammonia burns and ammonia will cause your fish to become very sick or die also if she just gave birth that can also weaken her

 

[Retired Viking]

You also have a tank stocking issue but I will cover that later let's try and do what we can for the fish for now.

 

[Colin_T]

The fish has an external bacterial or external protozoan infection.

Wipe the inside of the glass with a clean fish sponge.

Do a 75% water change and gravel clean the substrate every day for a week.
Make sure any new water is free of chlorine/ chloramine before it's added to the tank.

Add 2 heaped tablespoons of rock salt, sea salt or swimming pool salt for every 20 litres of tank water. Keep salt in water for 2 weeks and see how the fish goes.

The salt will not affect the beneficial filter bacteria, fish or plants.

After you use salt and the fish have recovered, you do a 10% water change each day for a week using only fresh water that has been dechlorinated. Then do a 20% water change each day for a week. Then you can do bigger water changes after that. This dilutes the salt out of the tank slowly so it doesn't harm the fish.

If you do water changes while using salt, you need to treat the new water with salt before adding it to the tank. This will keep the salt level stable in the tank and minimise stress on the fish.​