Female LD lay down

[balha]

I have a female (LD) about 5'' in couple some with one Maze which is in very good health (laid several times). Suddenly the female started to swim the head in bottom yesterday at 16h during an hour. and after, it lay down. it breathes normally I think and it moves its fin slowly. I suspect a bladder problem, I added epsom salt yesterday but it did not give anything. I increased the temperature of 2 degree this morning ( 30 to 32 celcius ). the pH is has 7,4 and I make water change of 25a almost 50% everyday. My water is Ok. no chloramine, no ammoniac, no nitrite.

so what can i do ?

thank you for help

[pcsb23]

I would not increase the temp at all, in fact I would decrease it to no more than 84f or 29c. You may need to consider using a broad spectrum anti biotic.