@Colu Deal! I also bought the Fritz ACCR ammonia remover. Thoughts on that in a small tank?
I can add carbon now too, since indeed the Pineconing is resolved.
And Mertoplex is oral.
I do not know how I could have saved this fish without all of this sites help.
Maybe one day I can visit your store and thank you all in person.
PS. My neurologic Angelfish with possible HITH, did not live. You all helped with her too.
But truly, her quality of life , ability to navigate a tank and find food, was of much much concern to me.
her appetite and stress level seemed just not fair to such a sweet fish.