What's wrong with my Giant Danio?

One of my fiant danios from my 75-gallon Tank was gulping for air the whole day today. I caught him in a net (which was way too easy to do, indicating he was sick) and saw that part of his mouth was missing :0 It also looks like one side of his gills is redder than the other. Did he just get hurt or could this be a disease of some sorts? Initially I thought that my danios mouths were white as well but I'm not 100% sure they are. For now I've seperated him to my 10-gallon with a divider in the middle and am keeping him on the side with my betta fish. This is just so that I can monitor what's wrong with him.

 

How long have you had the danio?
When did you last add new fish to the tank?
What are water parameters?

You should of really just left the danio in the tank... If it's a disease the betta tank may be contaminated now. Best is to leave a sick fish be unless you have a designated hospital/quarantine tank.

There is a template on forum you should fill out to help users figure out whats wrong.

 

How long have you had the danio?
When did you last add new fish to the tank?
What are water parameters?

You should of really just left the danio in the tank... If it's a disease the betta tank may be contaminated now. Best is to leave a sick fish be unless you have a designated hospital/quarantine tank.

There is a template on forum you should fill out to help users figure out whats wrong.

1.) Since August last year
2.) No I haven't, the last fish I bought was back in february.
3.) As of 2 weeks ago- Nitrite:0 Nitrate:10 Ammonia:0 pH: 7.4-7.6

I don't think it's contagious since only my danio is showing symptoms, I mainly separated so that I could monitor his eating and if he's improving. And if it was contagious it's probably in all of my tanks since I use the same equipment between all 3 of them.

 

Can you post a picture?

 

Tank
What is the water volume of the tank? 75-gallon
How long has the tank been running? 2+ years
Does it have a filter? yes
Does it have a heater? yes
What is the water temperature? 79.4
What is the entire stocking of this tank? (Please list all fish and inverts.)
-5 giant danios
-2 angelfish
-2 gouramis
-1 pleco (not common pleco)
-8 glofish tetra
Maintenance
How often do you change the water?
2-4 weeks (basically whenever I get the time to)
How much of the water do you change?
15 gallons
What do you use to treat your water?
Stress Coat and Stress Zyme
Do you vacuum the substrate or just the water?
I vacuum the substrate
*Parameters - Very Important
Did you cycle your tank before adding fish?
yes
What do you use to test the water?
The strips at PetSmart
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.
Ammonia:0
Nitrite:0
Nitrate:10
pH: 7.4-7.6

Feeding
How often do you feed your fish? Once a day
How much do you feed your fish? A cube of freeze dried shrimp or as many flakes as they can eat in 2-3 minutes
What brand of food do you feed your fish? Omega One and TetraMin Tropical Flakes
Do you feed frozen or freeze-dried foods?
No

Illness & Symptoms
How long have you had this fish? August 2020
How long ago did you first notice these symptoms? This morning (but I've noticed some of my fish have had white mouths during the past month, not 100% sure if I'm right though.)
In a few words, can you explain the symptoms? The fish was gulping air at the top of the tank and was more confused than normal. When I went to net him to see what was wrong he was slower than normal.
Have you started any treatment for the illness?
No but I've separated him.
Was your fish physically ill or injured upon purchase?
No
How has its behavior and appearance changed, if at all?
It's missing part of it's mouth on it's left side and it's gill on it's left side is also red.

Can you post a picture?

 

To me, if the other fish are acting okay, something may have attacked it and/or it could have ran into an object. What kind of gourami do you have?

 

To me, if the other fish are acting okay, something may have attacked it and/or it could have ran into an object. What kind of gourami do you have?

Three-Spot Gourami. I think it might be an injury as well. How do you suggest treating the injury? Since I don't have a quarantine/hospital tank if I were to treat him I'd have to treat my whole 10-Gallon. It has the least amount of fish (a betta and 2 angelfish fry) and would require the least amount of medicine.

 

Three-Spot Gourami. I think it might be an injury as well. How do you suggest treating the injury? Since I don't have a quarantine/hospital tank if I were to treat him I'd have to treat my whole 10-Gallon. It has the least amount of fish (a betta and 2 angelfish fry) and would require the least amount of medicine.

I would keep the water clean and possibly add a little salt (although it might not entirely be necessary). The big thing is to monitor and keep it from getting infected until you see the tissue close up or even new growth.

 

I would keep the water clean and possibly add a little salt (although it might not entirely be necessary). The big thing is to monitor and keep it from getting infected until you see the tissue close up or even new growth.

His eyes are bulging out now... What should I do?

 

His eyes are bulging out now... What should I do?

How bad is it? Both of them? I would treat for bacteria popeye.

 

How bad is it? Both of them? I would treat for bacteria popeye.

I believe it was Popeye on both eyes. Unfortunately the giant danio died tonight I’m happy that I tried to save him though... I’ll do a water change to get the medicine out of the tank tomorrow.