Thanks Gus...I'll check it out. Very interesting. I appreciate that. [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]
Swords, the ventricosa is in a tank which sits in a west-facing window. So its not in the open and its quite humid in the tank (partially closed) but there is air circulation. There are two tanks...one with my ventricosa and a raff. Tank below has droserae and a ping in it.
Its interesting others have experienced this half-black event. I just hate losing them...the pitchers are quite pretty before the blackening.