Anubias Nana dying?

Im not sure but I think I'm killing a supposedly hard to kill plant. Is this normal or is my anubias nana & anubias nana petite dying? Also I over did it with the super glue gel & have white spots, will he glue fad away with time? Thanks

 

Check the rhizome part of the plant (where all the leaves come out of)
I've killed an anubias before because the rhizome basically disintegrated due to be putting it too far under my substrate.

 

Are you dosing any ferts? All plants do better with added co2 and fertilizers. Looks like a nutrient deficiency. Also , anubias thrive best in shaded areas with both roots & rhizome exposed

 

Are you dosing any ferts? All plants do better with added co2 and fertilizers. Looks like a nutrient deficiency. Also , anubias thrive best in shaded areas with both roots & rhizome exposed

Its only been in for a week & put in fertilizer when I added. Its tied to driftwood so rhizome & roots are exposed, but I did originally try to glue it & think I used too much.

 

Did it have any major damage when you got it and do you have snails? Could be melting, but it almost looks like when my snails clean dead tissue off plants. Could be either one IMO.