Gourami Very Bloated all of a sudden

Tank
What is the water volume of the tank?
20 gallons
How long has the tank been running?
3 years
Does it have a filter?
Yes
Does it have a heater?
No
What is the water temperature?
74-75
What is the entire stocking of this tank? (Please list all fish and inverts.)
1 Honey Gourami
5 Harlequin Rasboras
1 peacock gudgeon
1 platy
1 bamboo shrimp
A bunch of random breed shrimp
1 bristle noose pleco



Maintenance
How often do you change the water?
Once a week
How much of the water do you change?
About 20%
What do you use to treat your water?
Seachem Prime
Do you vacuum the substrate or just the water?
Both

*Parameters - Very Important
Did you cycle your tank before adding fish?
What do you use to test the water?
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.
Ammonia:0 ppm
Nitrite:0 ppm
Nitrate:5 ppm
pH:7.4

Feeding
How often do you feed your fish?
Every other day
How much do you feed your fish?
two finger pinches
What brand of food do you feed your fish?
Fluval bug bites tropical bug bites
Do you feed frozen?
Once a week
Do you feed freeze-dried foods?
No

Illness & Symptoms
How long have you had this fish?
About 2 year
How long ago did you first notice these symptoms?
Couple days ago
In a few words, can you explain the symptoms?
I noticed he become really bloated a couple days ago and just would sit at the bottom of the tank and only swim up for air.
Have you started any treatment for the illness?
None
Was your fish physically ill or injured upon purchase?
None
How has its behavior and appearance changed, if at all?
Yes his stomach is bloated and less active.

Explain your emergency situation in detail.
In my tank my 2 year old honey gourami I noticed he become very bloated one day so I move him to a breeder box and his been in there a couple days and I haven't feed him any food since then. The bloat has seem to not go down or become bigger. I was wondering if anyone would have advice to help him out? I've attached a photo of him below.

 

Try feeding some frozen daphnia. Can work as a laxative, may help if fish is constipated. Guessing that is the issue, i don't see pineconing with the bloat, so don't think it is dropsy.

 

Epsom Salt (plain) will also work as a laxative.

Is the fish eating ?

If the fish is not eating, look into treating him with General Cure

 

I’ll try some frozen daphnia. I am not sure if he’s been eating as I’ve been not feeding him because I have a werid feeling he ate some shrimp in the tank which led to him becoming over feed.

 

i will not feed the fish for a day or 2. Hope the fish just over ate and not sick. I have African Cichlids, some of them are greedy eaters. When this happens, fish will not eat anyways.