Re: Anubias Rhizome Rotting!

>Anubias barteri var. nana is a pretty tough plant and duckweed is even 
>tougher.  I have not seen or heard of these symptoms, 

(Rotten patches in the rhizome)

> I think something is seriously wrong.  

...hope not!

>I am wondering how often you make water changes, because if you don't have
>a regular schedule of partial water changes, adding trace elements three 
>times a week could build some elements up to toxic levels.  I would 
>suggest you make a major water change and see if the plants don't get 
>Paul Krombholz                  Tougaloo College, Tougaloo, MS  39174 

Sorry, I should have mentioned that in the Tank Details: 20% water change 
weekly (Thursday nights). Thanks for the suggestion anyway. Other than 
toxic amounts of trace elements is there any other likely cause?