I week ago he is gone

Thank you very much
I will inform you about the final effects

I suppose fish has stopped eat in provoius tank due to stress ( fish has 20 cm, the biggest fishes have more than 30 )
propably long piriod of time doesnt eat at all

aproximetly 6 month earlier I treated fishes( flagellates ) zoolek protosol - everything was ok - succesful treatment ...

vegetables:zucchini cucumbers carrots
chips for plecos with spirulina
I added garlic and sera fishtamin
temerature 26 C
tank was setup 2 years ago about 1,5 month ago pleco was transfered to new tank
In main tank plecos was much bigger
I buy this fish more than 2 years ago

Hi
I am new there
I have got 20 cm L330
Water parameters are correct no2 no3 = 0
I have noticed He stopped to eat a few weeks ago
I dont know the reason but I noticed he had sticky white feces
What is more He has a sunken belly
In the aquarium, it stays below the surface of the water He is breathing ...