Betta floating vertically - Help Please

Hello Fish Friends
I need your help please.
I adopted Big Red from a local Pet Store about 4 weeks ago and he has been a beautiful addition to my 57ltr Fluval Flex tank. He shares the tank with 3 wee Tetras and a small bottom feeding loach.
I keep the tank at 28 degrees Celsius. I have a gravel substrate, air stone, silk plants and a few ornaments. Plenty of places for Big Red to rest.
I feed him Betta Pallets and species specific food for the other tank mates.
Today I noticed he was resting. In this vertical position, head up towards the top of the tank. He is normally very active. I have tested the water and the ammonia, nitrate, nitrite and ph were all within the parameters but I did a 50% water change anyway. Retested and now the results are perfect. I have added Epsom salt, stress enzyme and water conditioner.
As you can see from the photo I have isolated him and given him peas. He has pooped.
In the video you can see him swimming around but then he returns to the upright position. I can't seem to upload the video sorry.
Is there anything else I can do for him? I'm so worried. Is this swim bladder issue or something else? I wondered if he was over eating.....he does eat the tetra pallets too. So I only feed them all every 2 or 3 days.
Any advise is welcome.
Thank you.

 

Please don't give your betta peas, instead live (or even frozen) daphnia would be suitable. Peas do work, but because betta isn't a herbivore, it works like milk works to cure lactose intolerant persons constipation... not really in a nice way.

Reason for this resting position might be simply because he doesn't have any plants in isolation to rest on. Why did you isolate him in first place? Bettas do chill out quite often by resting on some plants, decoration or on the bottom of tank. Some bettas do like to rest in strange positions, I've seen a picture of a betta that dived head on into a plant to rest there, and my bettas do dig themselves quite often into a large, bushy octopus plant. If your fish eats and poops normally, isn't getting pale, has fin rot, or is clearly legarthic, you don't need to worry. It's quite common for new fishy parent to be easily concerned and start to medicate, but with doing that, they actually make their fish sick when medicating without a need to do it. If something, you can add a catappa leaf or two into tank, they do have antimicrobial properties, and they do tend to make your fish feel more comfortable.

 

Please don't give your betta peas, instead live (or even frozen) daphnia would be suitable. Peas do work, but because betta isn't a herbivore, it works like milk works to cure lactose intolerant persons constipation... not really in a nice way.

Reason for this resting position might be simply because he doesn't have any plants in isolation to rest on. Why did you isolate him in first place? Bettas do chill out quite often by resting on some plants, decoration or on the bottom of tank. Some bettas do like to rest in strange positions, I've seen a picture of a betta that dived head on into a plant to rest there, and my bettas do dig themselves quite often into a large, bushy octopus plant. If your fish eats and poops normally, isn't getting pale, has fin rot, or is clearly legarthic, you don't need to worry. It's quite common for new fishy parent to be easily concerned and start to medicate, but with doing that, they actually make their fish sick when medicating without a need to do it. If something, you can add a catappa leaf or two into tank, they do have antimicrobial properties, and they do tend to make your fish feel more comfortable.

Thank you. I thought he was looking a bit bloated and he was very inactive all day, then started resting upright, behaviour he hasn't exhibited in the weeks I've had him..
But thabk you for your suggestions . I will look into finding some catappa leaves. Thanks heaps.

 

Hi Fish Friends.
So it has been a few days and I have seen no real change in Big Reds behaviour. He has pooped and has been a little bit active in the isolation net, so I made the decision to release him in to the main tank. As you can see from the new photos he still seems to be struggling.
Any further advise will be gratefully received.
Thank you in advance.

 

Your fish looks very very bloated. How much did you say you feed him? I would keep him out of the isolation net and not feed him for at least 3 days. Do not feed him peas. Daphnia are much better to help him pass stool.
Now, does he eat any of the foods you feed the other fish? Maybe he overindulged? The isolation net is most likely going to stress him out even more than his state already is. So avoid putting him back in it.

He most likely has some buoyancy issues because of the bloat. Do his scales look raised? Any chance you can get a clear picture of him from above? Can you see anything that might point towards him pineconing?
What does your maintenance routine look like? How many times do you change his water and how much do you change?
I would suspect internal parasites or a bacterial infection as cause if overfeeding has been ruled out.

 

can you get a picure from above? if his scales are raised it is most likely dropsy