Fish is sick! Need urgent help

What is the water volume of the tank? 50 Gallon
How long has the tank been running? 6 months
Does it have a filter? Yes
Does it have a heater? Yes
What is the water temperature? 28 degrees
What is the entire stocking of this tank? (Please list all fish and inverts.)
Guppy x4
Platies x3
Mollys x4
Swordtails x5
Loads of little fry swimming about too
Maintenance
How often do you change the water? Every 2 weeks
How much of the water do you change? 1/4 of the tank
What do you use to treat your water? De-chlorinator (king british)
Do you vacuum the substrate or just the water? Vacuum the Substrate

*Parameters - Very Important
Did you cycle your tank before adding fish? Yes
What do you use to test the water? I don’t test the water all the fish have been fine expect this one
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.
Ammonia: N/A
Nitrite: N/A
Nitrate: N/A
pH: N/A

Feeding
How often do you feed your fish? 2 times a day
How much do you feed your fish? A pinch
What brand of food do you feed your fish? Not sure just the normal flake food for tropical fish
Do you feed frozen? Yes mix from shrimp, blood work and this orange block that I have no idea what food it is
Do you feed freeze-dried foods? No

Illness & Symptoms
How long have you had this fish? 3 weeks
How long ago did you first notice these symptoms? 2 days ago
In a few words, can you explain the symptoms? Lathargic, scales have come off with red ish open wounds
Have you started any treatment for the illness? No I don’t know what treatments
Was your fish physically ill or injured upon purchase? Was lathargic at the start perked up a little then started hiding and I noticed the wound
How has its behavior and appearance changed, if at all? Isolating itself, swimming a bit weird, not eating much and lethargic

Explain your emergency situation in detail.
(Please give a clear explanation of what is going on, include details from the beginning of the illness leading up to now)
Purchased the fish and it appeared to be lethargic but perked up for a few days. The past week it has been eating less and less then I notice these scales coming off the fish and open like wounds on its side. When I look at her from side on it looks like skin coming off her. She doesn’t interact with any fish and stays in the corner of the tank preferably at the top

 

You should get liquid test kits for Ammonia, nitrite nitrate, and ph at the minimum. Api and salifert liquid test kits are the best if they sell those where you are. Livebearers thrive at a ph of 7.5 or higher, and you should really know what your ph is before breeding livebearers. All fish look healthy right up until signs of illness start to show. And livebearers are dealing with a lot of stress, constant harassment to breed, constantly being gravid, and constantly fighting off rival males.

You should put this fish in a hospital tank and add a little aquarium salt.
Remove or sand down any decorations that could scratch the fish, including plastic plants.

 

I won't often say this at the first glance this but this seriously looks like TB to me. Personally I'd euthanise this fish (it is over the edge in an irreversable state to me). Don't want to scare you but be carefull with your hands in the tank (no wounds)

 

I won't often say this at the first glance this but this seriously looks like TB to me. Personally I'd euthanise this fish (it is over the edge in an irreversable state to me). Don't want to scare you but be carefull with your hands in the tank (no wounds)

What’s the nicest way to do this then…

 

Clove oil. I forgot the exact measurements but move the fish into a smaller (preferably disposable or dishwashable) container with some tank water. Add however many drops is recommended and let them sit. Clove oil is a low-grade anesthetic so they pretty much just fall into a coma and eventually stop breathing when it’s overdosed.

 

I won't often say this at the first glance this but this seriously looks like TB to me. Personally I'd euthanise this fish (it is over the edge in an irreversable state to me). Don't want to scare you but be carefull with your hands in the tank (no wounds)

Could you have a look at this photo it’s a big clearer

 

Yeah it looks like TB or it could be red spot disease. As double dutch said, be careful putting your hand inside of the aquarium as it is one of the diseases that can be passed on into humans.

unfortunately, there is no current cure for TB and to prevent spreading the disease to any of your fish I would also suggest euthanising it. The fish can survive for a while with the disease in good water quality and no stress but in the end it will die from the disease.

so in the end like everyone else is commenting, clove oil is the best painless option to euthanise the fish.

 

If You decide to use clove oil please do it correctly!

1. Put the fish in a container with a small amount of its tank water where it is comfortable, for a small fish, you could cut the top off of a used water bottle, or just use a tall glass. you want to be able to fill it partway with tank water, and still have several inches of empty space so that you can add more water, and not have the fish jumping out. You want the fish to be comfortable, but you don't want to add so much water that you have to use the whole bottle of clove oil

2. Get a used water bottle and fill it with tank water. Add 1 drop of clove oil for every 2 ounces of water and shake very well. If you add a little too much don't worry, but be careful.

3. Add a small amount of the clove oil mixture to the container with the fish. "maybe half an ounce", and walk away for 10 minutes.

4. Come back and observe the fish, it may already be asleep, if not, add a small amount of clove oil and wait ten more minutes. Repeat as needed.

5. When the fish is belly up and sleeping, add all of the rest of the clove oil mix. and come back in 10-20 minutes.

6. Your fish has gone to a better place, probably, 99.9% sure. but if you are paranoid like me now is a good time to get your husband to decapitate your fish to eradicate any possibility of the fish waking up. Or you could put the almost definitely dead fish in the freezer, or add an Alka-Seltzer tab, or some alcohol.

FYI, You can buy clove oil at most pharmacies, or order clove essential oil online.

7 Sorry about your loss!