intenta buscar en google: anubia melting , hay varias respuestas en foros gringos lei unos pocos y dicen que puede ser por un hongo, que hay que cortar y desinfectar con agua oxigenada, etc. leí poquito porque estoy en otra ahora, suerte con las anubias!
un extracto de
http://www.ukaps.org/forum/threads/anubias-melt.9563/
"I can't believe people in the UK have this problem too!
First I thought it was only me, and in USA area have this issue, due to my belief it is caused by an unknown plant disease..... and only those area have little talk about the anubias dying......
IME, I have three Anubias petite(might be bonsai) for 2 years no problem.
The problem start since I bought 2 pre-tied bogwood with Anubias nana and mosses, they basically rot in one week, leaves falling every day, I took them out, dissect them, bad smell rhizome, mushy, they breakdown to white powder like material, and again very bery bad smellllllll.....
One of my early Anubias petite has die, they soften, very unusual soft..... it died, the other two I manged to rescued has no problem, new leaf had grown out, but they are kinda soft in the beginning....anyway
Weeks later, I thought the problem has gone...... then I bought a bunch more petite, stardust, golden, and lots of other varieties from Hong Kong, extremely expensive I have to say!! BUT AGAIN....they die basically start with signs like:leaf soak with water, melt, just melted away, fallen leaf, brown rhizome, mushy rhizome, and DIE.....
I hate to say it but why is it only anubias had this disease?
I also have a thread in APC forum, compiling people had this issue......
Anubias SP. Disease Problems: Root Rot, Melting Leaf, Soft Rhizome & Loosen Stem."