Please, I need your help.
Last addition to 20 G tank was a glass cat fish which I quarantined but ...
The water is 0 amonia, 0 nitrites, 10 nitrates, 8
pH and water changes twice/week. Everybody else is fine but my 2 little gourami girls. The big gourami girl is still fine.
They have a very fungus looking white stuff on dorsal fin, some minor damage like rot too and one on the body. The size is like 0.5 mm diameter and sticking out a little.
My guess is Columnaris because the water is too clean to be fungus. The tank has 2 months and was cycled in a week with Stability and media, plants and decoration from other tanks.
I quarantined them with Maracyn Plus and Anti Fungus. Breathing heavily because they hated the change but eating and active.
What is it ?
Thank you in advance.
There are pictures ....
L
PS: I also treated the big tank with Maracyn Plus just to be safe. I have my neons for such a long time .... I don't want to lose them
The glass catfish are in another quarantine tank with Triple Sulfa .... I don't think they can take Maracyn Plus ... too strong. I used half dosage for neons too.