Help! Clamped Fins/fin Rot/melt?

[ReiRei]

 
Meet my unfortunate new betta, Wolverine.
I need help urgently, as he won't last the week at this rate.
 
This is the state of his fins - he was slightly torn in the shop, not looking too good, but being as stupid as I am I bought him anyway.
Im currently treating for fin rot - but what else can I do? Need help FAST.
 
He's active about 50% of the time, able to swim normally, however the other 50% he just lies on leaves or any resting place.
30 litre tank
Water parameters are fine.

 

[ReiRei]

UPDATE: water changed 10%. added aquarium salt to the tank, turned off the lights.

 

[Francesjane]

Oh poor thing...I'm sorry I can't help but just search google and I'm sure you will find some help...hope he gets through it :0(

 

[Wildbetta]

He looks severely clamped.  I would bump the heat up to 84F to help hi fight off whatever is bothering him.  Is he eating?  What is his poop like?  What are you using to treat the fin rot? Medication or just clean warm water?  

 

[ReiRei]

I'll do that. He's not eating, no. Havent seen him poop, as he's spending a lot of time hiding. I'm using medication to treat fin rot.

 

[ReiRei]

He's now worse, any further suggestions would be appreciated

 

[mark4785]

He's now worse, any further suggestions would be appreciated

 
I would personally try to segregate it, either in the same tank, or by putting it into another tank if there are other fish in his/her tank. Then before treating, or continuing with a treatment, I'd test the water parameters to ensure the ammonia, nitrite, PH, GH and KH levels are within range. If they are not, a big water change (in the case of ammonia/nitrite poisoning) or water conditioning (pete filtration or reverse osmosis condition water for inappropriate KH/PH/GH values) is in order.
 
If the above parameters are within range and the fish is separated I would EITHER continue with the salt treatment (make sure your nitrates are about 20 ppm; no higher as salt is more toxic in a high nitrate environment) OR remove all of the salt and do several partial water changes each day with the aim of reducing the bacterial/fungal count in the water; you could of course, buy a cheap UV filter which will achieve this by itself.

 

[Wildbetta]

What kind of medication are you using to treat the fin rot?

 

[ReiRei]

Sadly, he passed away. My next method of treatment would have been a complete blackout on the tank to reduce stress, but it never got that far.