I got a new Congo Tetra yesterday and I noticed something weird about his mouth. It almost looks like he has two mouths? Is this a disease or an injury?
My water parameters are as follows:
pH: 7.0
Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 5ppm
GH: 8 degrees
I can’t find my KH test bottle so I’m not sure how accurate this is but the API test strip I do have says 40ppm for KH. For all the other tests, I used the API Freshwater Master Test Kit.
Is salt the best course of action for this?